85 results on '"Brännström J"'
Search Results
2. Assessing cervical intraepithelial neoplasia as an indicator disease for HIV in a low endemic setting: a population‐based register study
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Carlander, C, Marrone, G, Brännström, J, Yilmaz, A, Elfgren, K, Sparén, P, and Sönnerborg, A
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- 2017
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3. A high rate of HIV‐1 acquisition post immigration among migrants in Sweden determined by a CD4 T‐cell decline trajectory model
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Brännström, J, Sönnerborg, A, Svedhem, V, Neogi, U, and Marrone, G
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- 2017
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4. The association between hepatitis B virus infection and nonliver malignancies in persons living with HIV: results from the EuroSIDA study
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Mocroft, Amanda, Miro, Jose M., Wandeler, Gilles, Llibre, Josep M., Boyd, Anders, van Bremen, Kathrin, Beniowski, Marek, Mikhalik, Julia, Cavassini, Matthias, Maltez, Fernando, Duvivier, Claudine, Uberti Foppa, Caterina, Knysz, Brygida, Bakowska, Elzbieta, Kuzovatova, Elena, Domingo, Pere, Zagalo, Alexandra, Viard, Jean Paul, Degen, Olaf, Milinkovic, Ana, Benfield, Thomas, Peters, Lars, Harxhi, A., Losso, M., Kundro, M., Schmied, B., Zangerle, R., Karpov, I., Vassilenko, A., Mitsura, V. M., Paduto, D., Clumeck, N., De Wit, S., Delforge, M., Florence, E., Vandekerckhove, L., Hadziosmanovic, V., Begovac, J., Machala, L., Sedlacek, D., Kronborg, G., Gerstoft, J., Katzenstein, T., Pedersen, C., Johansen, I. S., Ostergaard, L., Wiese, L., Moller, N. F., Nielsen, L. N., Zilmer, K., Smidt, J., Aho, I., Lacombe, K., Pradier, C., Fontas, E., Rockstroh, J., Behrens, G., Hoffmann, C., Stellbrink, H. J., Stefan, C., Bogner, J., Fätkenheuer, G., Chkhartishvili, N., Sambatakou, H., Adamis, G., Paissios, N., Szlávik, J., Gottfredsson, M., Devitt, E., Tau, L., Turner, D., Burke, M., Shahar, E., Wattad, L. M., Elinav, H., Haouzi, M., Elbirt, D., D’Arminio Monforte, A., Esposito, R., Mazeu, I., Mussini, C., Mazzotta, F., Gabbuti, A., Lazzarin, A., Castagna, A., Gianotti, N., Galli, M., Ridolfo, A., Uzdaviniene, V., Matulionyte, R., Staub, T., Hemmer, R., Dragas, S., Stevanovic, M., vd Valk, M., Trajanovska, J., Reikvam, D. H., Maeland, A., Bruun, J., Szetela, B., Inglot, M., Flisiak, R., Grzeszczuk, A., Parczewski, M., Maciejewska, K., Aksak-Was, B., Mularska, E., Jablonowska, E., Kamerys, J., Wojcik, K., Mozer-Lisewska, I., Rozplochowski, B., Mansinho, K., Radoi, R., Oprea, C., Gusev, D., Trofimova, T., Khromova, I., Borodulina, E., Ranin, J., Tomazic, J., Miró, J. M., Laguno, M., Martinez, E., Garcia, F., Blanco, J. L., Martinez-Rebollar, M., Mallolas, J., Callau, P., Rojas, J., Inciarta, A., Moreno, S., del Campo, S., Clotet, B., Jou, A., Paredes, R., Puig, J., Santos, J. R., Gutierrez, M., Mateo, G., Sambeat, M. A., Laporte, J. M., Svedhem, V., Thalme, A., Sönnerborg, A., Brännström, J., Flamholc, L., Kusejko, K., Braun, D., Calmy, A., Furrer, H., Battegay, M., Schmid, P., Kuznetsova, A., Sluzhynska, M., Johnson, M. A., Simons, E., Edwards, S., Phillips, A., Orkin, C., Winston, A., Clarke, A., Leen, C., Lundgren, J., Rasmussen, L. D., Kowalska, J. D., Guaraldi, G., Larsen, J. F., Bojesen, A., Neesgaard, B., Jaschinski, N., Fursa, O., Sather, M., Raben, D., Hansen, E. V., Kristensen, D., Fischer, A. H., Jensen, S. K., Elsing, T. W., Reekie, J., Cozzi-Lepri, A., Amele, S., Pelchen-Matthews, A., Roen, A., Tusch, E. S., Bannister, W., Mocroft, A., Miro, J. M., Wandeler, G., Llibre, J. M., Boyd, A., van Bremen, K., Beniowski, M., Mikhalik, J., Cavassini, M., Maltez, F., Duvivier, C., Uberti Foppa, C., Knysz, B., Bakowska, E., Kuzovatova, E., Domingo, P., Zagalo, A., Viard, J. -P., Degen, O., Milinkovic, A., Benfield, T., Peters, L., Harxhi, A., Losso, M., Kundro, M., Schmied, B., Zangerle, R., Karpov, I., Vassilenko, A., Mitsura, V. M., Paduto, D., Clumeck, N., De Wit, S., Delforge, M., Florence, E., Vandekerckhove, L., Hadziosmanovic, V., Begovac, J., Machala, L., Sedlacek, D., Kronborg, G., Gerstoft, J., Katzenstein, T., Pedersen, C., Johansen, I. S., Ostergaard, L., Wiese, L., Moller, N. F., Nielsen, L. N., Zilmer, K., Smidt, J., Aho, I., Lacombe, K., Pradier, C., Fontas, E., Rockstroh, J., Behrens, G., Hoffmann, C., Stellbrink, H. J., Stefan, C., Bogner, J., Fatkenheuer, G., Chkhartishvili, N., Sambatakou, H., Adamis, G., Paissios, N., Szlavik, J., Gottfredsson, M., Devitt, E., Tau, L., Turner, D., Burke, M., Shahar, E., Wattad, L. M., Elinav, H., Haouzi, M., Elbirt, D., D'Arminio Monforte, A., Esposito, R., Mazeu, I., Mussini, C., Mazzotta, F., Gabbuti, A., Lazzarin, A., Castagna, A., Gianotti, N., Galli, M., Ridolfo, A., Uzdaviniene, V., Matulionyte, R., Staub, T., Hemmer, R., Dragas, S., Stevanovic, M., vd Valk, M., Trajanovska, J., Reikvam, D. H., Maeland, A., Bruun, J., Szetela, B., Inglot, M., Flisiak, R., Grzeszczuk, A., Parczewski, M., Maciejewska, K., Aksak-Was, B., Mularska, E., Jablonowska, E., Kamerys, J., Wojcik, K., Mozer-Lisewska, I., Rozplochowski, B., Mansinho, K., Radoi, R., Oprea, C., Gusev, D., Trofimova, T., Khromova, I., Borodulina, E., Ranin, J., Tomazic, J., Laguno, M., Martinez, E., Garcia, F., Blanco, J. L., Martinez-Rebollar, M., Mallolas, J., Callau, P., Rojas, J., Inciarta, A., Moreno, S., del Campo, S., Clotet, B., Jou, A., Paredes, R., Puig, J., Santos, J. R., Gutierrez, M., Mateo, G., Sambeat, M. A., Laporte, J. M., Svedhem, V., Thalme, A., Sonnerborg, A., Brannstrom, J., Flamholc, L., Kusejko, K., Braun, D., Calmy, A., Furrer, H., Battegay, M., Schmid, P., Kuznetsova, A., Sluzhynska, M., Johnson, A. M., Simons, E., Edwards, S., Phillips, A., Johnson, M. A., Orkin, C., Winston, A., Clarke, A., Leen, C., Lundgren, J., Rasmussen, L. D., Kowalska, J. D., Guaraldi, G., Larsen, J. F., Bojesen, A., Neesgaard, B., Jaschinski, N., Fursa, O., Sather, M., Raben, D., Hansen, E. V., Kristensen, D., Fischer, A. H., Jensen, S. K., Elsing, T. W., Reekie, J., Cozzi-Lepri, A., Amele, S., Pelchen-Matthews, A., Roen, A., Tusch, E. S., Bannister, W., and Infectious diseases
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Hepatitis B virus ,Hepatitis B Surface Antigens ,Health Policy ,virus diseases ,HIV Infections ,Hepatitis B ,digestive system diseases ,HBV DNA ,hepatitis B ,nonliver cancer ,Infectious Diseases ,Hepatitis B, Chronic ,Neoplasms ,DNA, Viral ,Humans ,Pharmacology (medical) ,610 Medicine & health - Abstract
Objectives: The aim of this study was to assess the impact of hepatitis B virus (HBV) infection on non-liver malignancies in people living with HIV (PLWH). Methods: All persons aged ≥18 years with known hepatitis B virus (HBV) surface antigen (HBsAg) status after the latest of 1January 2001 and enrolment in the EuroSIDA cohort (baseline) were included in the study; persons were categorized as HBV positive or negative using the latest HBsAg test and followed to their first diagnosis of nonliver malignancy or their last visit. Results: Of 17485 PLWH included in the study, 1269 (7.2%) were HBV positive at baseline. During 151766 person-years of follow-up (PYFU), there were 1298 nonliver malignancies, 1199 in those currently HBV negative [incidence rate (IR)8.42/1000 PYFU; 95% confidence interval (CI) 7.94–8.90/1000 PYFU] and 99 in those HBV positive (IR10.54/1000 PYFU; 95% CI8.47–12.62/1000 PYFU). After adjustment for baseline confounders, there was a significantly increased incidence of nonliver malignancies in HBV-positive versus HBV-negative individuals [adjusted incidence rate ratio (aIRR)1.23; 95% CI 1.00–1.51]. Compared to HBV-negative individuals, HBsAg-positive/HBV-DNA-positive individuals had significantly increased incidences of nonliver malignancies (aIRR 1.37; 95% CI 1.00–1.89) and NHL (aIRR 2.57; 95% CI 1.16–5.68). There was no significant association between HBV and lung or anal cancer. Conclusions: We found increased rates of nonliver malignancies in HBsAg-positive participants, the increases being most pronounced in those who were HBV DNA positive and for NHL. If confirmed, these results may have implications for increased cancer screening in HIV-positive subjects with chronic HBV infection.
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- 2021
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5. Barriers to HIV testing as reported by individuals newly diagnosed with HIV infection in Sweden
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George-Svahn, Lisa, Eriksson, L. E., Wiklander, M., Björling, Gunilla, Svedhem, V., Brännström, J., George-Svahn, Lisa, Eriksson, L. E., Wiklander, M., Björling, Gunilla, Svedhem, V., and Brännström, J.
- Abstract
Despite the availability of free and anonymous HIV testing almost 60% of Swedish patients are diagnosed late. Identifying predictors of different types of barriers could inform policy makers and health care of interventions to increase testing where needed. This cross-sectional study aimed to describe and analyze barriers to HIV testing as reported by Swedish patients newly diagnosed with HIV infection. N = 285 patients completed the 18-item Barriers to HIV Testing Scale - Karolinska Version. Descriptive analysis and logistic regressions were performed to assess the prevalence of barriers and to identify predictors for the different investigated barriers. Barriers to testing were reported by 60%. Approximately 67% of patients originating from Sweden, 50% from Sub-Saharan Africa and 75% from Eastern European/East Asian countries reported barriers. Patients who were younger and patients who self-initiated HIV testing, had greater odds of reporting a barrier than older individuals and those who were offered a test through screening or by a healthcare professional. To counteract barriers that still exist on an individual level, healthcare-initiated HIV testing could be offered more broadly and information about risks for transmission and effectiveness of HIV treatment still needs to be disseminated among both people born in Sweden and different migrant groups.
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- 2021
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6. Barriers to HIV testing as reported by individuals newly diagnosed with HIV infection in Sweden
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George-Svahn, L., primary, Eriksson, L. E., additional, Wiklander, M., additional, Björling, G., additional, Svedhem, V., additional, and Brännström, J., additional
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- 2020
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7. Patients unaware of their HIV infection until AIDS diagnosis in Sweden 1996–2002 – a remaining problem in the highly active antiretroviral therapy era
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Brännström, J, Åkerlund, B, Arneborn, M, Blaxhult, A, and Giesecke, J
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- 2005
8. Barriers to HIV testing as reported by individuals newly diagnosed with HIV infection in Sweden.
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George-Svahn, L., Eriksson, L. E., Wiklander, M., Björling, G., Svedhem, V., and Brännström, J.
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DIAGNOSIS of HIV infections ,HIV prevention ,SELF diagnosis ,HEALTH services accessibility ,NOMADS ,CROSS-sectional method ,AGE distribution ,MEDICAL screening ,AIDS serodiagnosis ,DESCRIPTIVE statistics ,LOGISTIC regression analysis ,PSYCHOLOGY of HIV-positive persons - Abstract
Despite the availability of free and anonymous HIV testing almost 60% of Swedish patients are diagnosed late. Identifying predictors of different types of barriers could inform policy makers and health care of interventions to increase testing where needed. This cross-sectional study aimed to describe and analyze barriers to HIV testing as reported by Swedish patients newly diagnosed with HIV infection. N = 285 patients completed the 18-item Barriers to HIV Testing Scale – Karolinska Version. Descriptive analysis and logistic regressions were performed to assess the prevalence of barriers and to identify predictors for the different investigated barriers. Barriers to testing were reported by 60%. Approximately 67% of patients originating from Sweden, 50% from Sub-Saharan Africa and 75% from Eastern European/East Asian countries reported barriers. Patients who were younger and patients who self-initiated HIV testing, had greater odds of reporting a barrier than older individuals and those who were offered a test through screening or by a healthcare professional. To counteract barriers that still exist on an individual level, healthcare-initiated HIV testing could be offered more broadly and information about risks for transmission and effectiveness of HIV treatment still needs to be disseminated among both people born in Sweden and different migrant groups. [ABSTRACT FROM AUTHOR]
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- 2021
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9. GENDER, PSYCHOTROPIC DRUG USE AND MORTALITY IN OLDER PEOPLE WITH DEMENTIA
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Boström, G., primary, Brännström, J., additional, Rosendahl, E., additional, Nordström, P., additional, Littrand, H., additional, Lövheim, H., additional, and Gustafson, Y., additional
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- 2017
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10. Deficiencies in the health care system contribute to a high rate of late HIV diagnosis in Sweden
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Brännström, J, primary, Svedhem Johansson, V, additional, Marrone, G, additional, Wendahl, S, additional, Yilmaz, A, additional, Blaxhult, A, additional, and Sönnerborg, A, additional
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- 2015
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11. Willeys 2-item readiness assessment used in a Swedish sample of HIV-infected patients with antiretroviral treatment
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Södergård, Björn, Halvarsson M, Brännström J, Sönnerborg A, MP, Tully, and Kettis Lindbald Å
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- 2006
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12. Deficiencies in the health care system contribute to a high rate of late HIV diagnosis in Sweden.
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Brännström, J, Svedhem Johansson, V, Marrone, G, Wendahl, S, Yilmaz, A, Blaxhult, A, and Sönnerborg, A
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DIAGNOSIS of HIV infections , *IMMIGRANTS , *DIAGNOSIS , *MEDICAL errors , *HEALTH care industry , *CD4 lymphocyte count - Abstract
Objectives The aim of the study was to identify factors in HIV-infected patients and the health care system which contribute to late diagnosis. Methods All patients who were newly diagnosed with HIV infection at 12 clinics in Sweden over a period of 2.5 years ( n = 575) were included in the study, corresponding to three-quarters of newly diagnosed HIV infections in the country. The patients were classified as non-late presenters or late presenters ( LPs), defined as those with a CD4 count < 350 cells/μL or AIDS. LPs were subdivided into those without and those with advanced HIV disease, which was defined as a CD4 count < 200 cells/μL or AIDS. Demographics, missed AIDS and HIV-associated symptoms in the preceding 3 years, immigration date, and health examination at immigration were recorded. Results Fifty-eight per cent of the patients were LPs, of whom 66% had advanced disease. Age > 30 years, origin in sub-Saharan Africa or Eastern Europe/Asia/the Pacific region, and country of transmission being in sub-Saharan Africa or unknown were associated with late presentation. Half of the patients of non-Swedish origin had lived for more than 1 year in Sweden at diagnosis and 66% had a missed HIV testing opportunity at immigration. Twenty-seven per cent of all patients had presented for health care with AIDS- and/or HIV-associated conditions without having an HIV test. Sixteen per cent had a history of symptoms without seeking care. Conclusions Deficiencies in the health care system with missed HIV testing opportunities contribute to the high proportion of late presenters in Sweden, especially among migrants. With increased testing at immigration and further incorporation of 'indicator-guided' testing in general practice, most patients could be diagnosed earlier. [ABSTRACT FROM AUTHOR]
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- 2016
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13. A high occurrence of late presenters and missed HIV diagnosis in clinical care in Sweden
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Brännström, J, Svedhem, V, Yilmaz, A, Blaxhult, A, Wendahl, S, and Sönnerborg, A
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Medical appointments and schedules -- Management ,HIV infection -- Diagnosis -- Distribution ,Company business management ,Company distribution practices ,Health - Abstract
7‐11 November 2010, Tenth International Congress on Drug Therapy in HIV Infection, Glasgow, UK, Purpose of the study To identify and predict factors for late HIV diagnosis in Sweden Methods In a prospective study involving 12 Swedish HIV clinics, all newly diagnosed patients, >18 [...]
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- 2010
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14. Late presentation for HIV care across Europe: Update from the collaboration of observational HIV epidemiological research Europe (COHERE) study, 2010 to 2013
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Mocroft, A., Lundgren, J., Andrea Antinori, Monforte, A. D., Brännström, J., Bonnet, F., Brockmeyer, N., Casabona, J., Castagna, A., Costagliola, D., Wit, S., Fätkenheuer, G., Furrer, H., Jadand, C., Johnson, A., Lazanas, M., Leport, C., Moreno, S., Mussini, C., Obel, N., Post, F., Reiss, P., Sabin, C., Skaletz-Rorowski, A., Suarez-Loano, I., Torti, C., Warszawski, J., Wittkop, L., Zangerle, R., Chene, G., Raben, D., Kirk, O., Touloumi, G., Meyer, L., Dabis, F., Krause, M. M., Ghosn, J., Wit, F., Prins, M., Bucher, H., Gibb, D., Del Amo, J., Thorne, C., Stephan, C., Pérez-Hoyos, S., Hamouda, O., Bartmeyer, B., Chkhartishvili, N., Noguera-Julian, A., Prieto, L., Conejo, P. R., Soriano-Arandes, A., Battegay, M., Kouyos, R., Tookey, P., Miró, J. M., Konopnick, D., Goetghebuer, T., Sönnerborg, A., Teira, R., Garrido, M., and Haerry, D.
15. Mesenchymal stromal cells support endothelial cell interactions in an intramuscular islet transplantation model
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Fransson Moa, Brännström Johan, Duprez Ida, Essand Magnus, Le Blanc Katarina, Korsgren Olle, and Magnusson Peetra U.
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Mesenchymal stromal cell ,Islets of Langerhans ,Transplantation ,Endothelial cells ,Medicine - Abstract
Background: Mesenchymal stromal cells (MSC) have been under investigation for a number of therapies and have lately been in focus as immunosuppressive actors in the field of transplantation. Herein we have extended our previously published in vitro model of MSC-islets in an experimental setting of islet transplantation to the abdominal muscle. Human islets coated with luciferase-GFP transduced human MSC were transplanted to the abdomen muscle tissue of NOD-scid ILR2γnull mice and cellular interactions were investigated by confocal microscopy. Result: The MSC reduced fibrotic encapsulation and facilitated endothelial cell interactions. In particular, we show a decreased fraction of αSMA expressing fibrotic tissue surrounding the graft in presence of MSC-islets compared to islets solely distributed into the muscle tissue. Also, in the presence of MSC, human islet endothelial cells migrated from the center of the graft out into the surrounding tissue forming chimeric blood vessels with recipient endothelial cells. Further, in the graft periphery, MSC were seen interacting with infiltrating macrophages. Conclusion: Here, in our experimental in vivo model of composite human islets and luciferase-GFP-transduced human MSC, we enable the visualization of close interactions between the MSC and the surrounding tissue. In this model of transplantation the MSC contribute to reduced fibrosis and increased islet endothelial cell migration. Furthermore, the MSC interact with the recipient vasculature and infiltrating macrophages.
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- 2015
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16. An Evaluation of the Psychometric Properties of the Short Form of the Speech, Spatial and Qualities of Hearing Scale in Swedish: Online Versus Paper-and-Pen.
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Ahlberg S, Brännström J, Öberg M, and Thorén E
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- Humans, Male, Sweden, Female, Middle Aged, Adult, Aged, Surveys and Questionnaires, Young Adult, Internet, Speech Perception, Aged, 80 and over, Hearing Tests methods, Psychometrics, Hearing Loss rehabilitation, Hearing Loss diagnosis
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Purpose: The purpose of this study was to examine the psychometric properties of the Swedish short form of the Speech, Spatial and Qualities of Hearing Scale (SSQ12) and investigate whether the paper-and-pen and online formats could be used interchangeably., Method: Individuals with and without hearing problems were invited to participate in this study. The participants ( N = 125) were randomized into four groups: paper-paper, online-online, paper-online, and online-paper. All participants completed the Swedish SSQ12 twice., Results: Principal components analysis revealed one component. Statistical analysis revealed good psychometric properties. Administration formats were compared using repeated-measures analysis of variance, which revealed no statistically significant differences., Conclusions: The results indicate that the Swedish SSQ12 is possible to use in paper-and-pen and online formats interchangeably. The questionnaire has potential to be used by Swedish audiologists seeking to understand the individual experience of hearing loss or to evaluate hearing rehabilitation. To further understand the possible differences and to broaden the use and understanding of the SSQ12, future studies should aim to determine the minimal clinically important difference for the SSQ12.
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- 2024
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17. The HepHIV 2023 Madrid conference: A call to action for political leadership in reaching the sustainable development goals on earlier testing and linkage to care for HIV, viral hepatitis, and sexually transmitted infections.
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Simões D, Raben D, Moran AB, Imaz A, Stengaard AR, Raahauge A, Sullivan AK, Vaughan E, Brännström J, De Baetselier I, Platteau T, Casabona J, and Del Amo J
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- Humans, Sustainable Development, Congresses as Topic, Leadership, Spain epidemiology, Social Stigma, Health Services Accessibility, Politics, HIV Infections diagnosis, Sexually Transmitted Diseases diagnosis, Hepatitis, Viral, Human diagnosis, Hepatitis, Viral, Human prevention & control, Hepatitis, Viral, Human epidemiology
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Introduction and Objectives: The HepHIV 2023 Conference, held in Madrid in November 2023, highlighted how Europe is not on track to meet the United Nations (UN) sustainable development goals and Joint UN Programme on HIV/AIDS (UNAIDS) targets. This article presents the outcomes of the conference, which focus on ways to improve testing and linkage to care for HIV, viral hepatitis, and other sexually transmitted infections. HIV-related stigma and discrimination, a major barrier to progress, was a key concept of the conference and on the agenda of the Spanish Presidency of the European Union., Methods: The HepHIV 2023 organizing committee, alongside the Spanish Ministry of Health, oversaw the conference organization and prepared the scientific programme based on abstract rankings. Key outcomes are derived from conference presentations and discussions., Results: Conference presentations covered the obstacles that HIV-related stigma and discrimination continue to pose to access to services, models for data collection to better monitor progress in the future, and examples of legislative action that can be taken at national levels. Diversification of testing approaches was also highlighted, to reach key populations, (e.g. migrant populations), to increase testing offered in healthcare settings (e.g. emergency departments), and to account for different stages of epidemics across the region., Conclusion: With a strong call for intensified action to address the impact of HIV-related stigma and discrimination on testing uptake, the conference concluded that strengthened collaboration is required between governments and implementers around testing and linkage to care. There is also an ongoing need to ensure sustainable political commitment and appropriate resource allocation to address gaps and inequalities in access for key populations and to focus on the implementation of integrated responses to HIV, viral hepatitis, and sexually transmitted infections., (© 2024 The Author(s). HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.)
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- 2024
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18. Sweden surpasses the UNAIDS 95-95-95 target: estimating HIV-1 incidence, 2003 to 2022.
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Lundgren E, Locke M, Romero-Severson E, Dimitrijevic M, Axelsson M, Andersson E, Carlander C, Brännström J, Norrgren H, Mansson F, Elvstam O, Gisslén M, Fohlin L, Sönnerborg A, Albert J, and Leitner T
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- Humans, Sweden epidemiology, Incidence, Male, Female, Adult, SARS-CoV-2, Middle Aged, Homosexuality, Male statistics & numerical data, Pandemics, Registries, Anti-HIV Agents therapeutic use, Young Adult, HIV Infections epidemiology, HIV Infections drug therapy, HIV Infections diagnosis, HIV-1 drug effects, COVID-19 epidemiology
- Abstract
BackgroundSweden reached the UNAIDS 90-90-90 target in 2015. It is important to reassess the HIV epidemiological situation due to ever-changing migration patterns, the roll-out of PrEP and the impact of the COVID-19 pandemic.AimWe aimed to assess the progress towards the UNAIDS 95-95-95 targets in Sweden by estimating the proportion of undiagnosed people with HIV (PWHIV) and HIV incidence trends.MethodsWe used routine laboratory data to inform a biomarker model of time since infection. When available, we used previous negative test dates, arrival dates for PWHIV from abroad and transmission modes to inform our incidence model. We also used data collected from the Swedish InfCareHIV register on antiretroviral therapy (ART).ResultsThe yearly incidence of HIV in Sweden decreased after 2014. In part, this was because the fraction of undiagnosed PWHIV had decreased almost twofold since 2006. After 2015, three of four PWHIV in Sweden were diagnosed within 1.9 and 3.2 years after infection among men who have sex with men and in heterosexual groups, respectively. While 80% of new PWHIV in Sweden acquired HIV before immigration, they make up 50% of the current PWHIV in Sweden. By 2022, 96% of all PWHIV in Sweden had been diagnosed, and 99% of them were on ART, with 98% virally suppressed.ConclusionsBy 2022, about half of all PWHIV in Sweden acquired HIV abroad. Using our new biomarker model, we assess that Sweden has reached the UNAIDS goal at 96-99-98.
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- 2024
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19. Factors associated with sex differences in viral non-suppression in the Swedish InfCareHIV cohort: An observational real-world study.
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Lindh M, Brännström J, Reepalu A, Svedhem V, and Mellgren Å
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- Humans, Male, Female, Sweden epidemiology, Adult, Middle Aged, Sex Factors, Cohort Studies, Patient Reported Outcome Measures, Anti-HIV Agents therapeutic use, RNA, Viral, Young Adult, Adolescent, HIV Infections drug therapy, HIV Infections epidemiology, Viral Load
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Objectives: Women living with HIV are underrepresented in clinical trials assessing outcomes of antiretroviral treatment (ART), justifying the need for observational studies. We investigated differences in viral non-suppression between women and men in the Swedish InfCareHIV cohort and analysed results in relation to biological and socio-demographic variables and patient-reported outcome measures (PROMs)., Methods: The study included people living with HIV (PLWH) aged ≥18 years, who initiated ART at least 6 months prior to inclusion. Data from the InfCareHIV registry 2011-2018 were collected. Associations between variables and HIV RNA ≥50 copies/mL were investigated in uni- and multivariable analyses using generalized estimating equations, providing relative risks (RRs) as effect size., Results: The study included 38% (n = 2981) women. Women were more likely to have HIV RNA ≥50 copies/mL than were men [RR = 1.20, 95% confidence interval (CI): 1.10-1.31]. After adjusting for origin and route of transmission, sex at birth was no longer associated with viral non-suppression. PROMs were available in 52.4% of PLWH, and items associated with viral non-suppression were impaired adherence in women (RR = 2.38, 95% CI: 1.79-3.17) and men (RR 1.84, 95% CI: 1.40-2.42), and experience of side effects in women (RR = 1.49, 95% CI: 1.10-2.02)., Conclusions: This observational study found a 20% higher relative risk of viral non-suppression in women than in men and the difference was associated with socio-demographic factors. The associations between PROMs and viral non-suppression varied between women and men. PROMs are important health outcomes that may identify PLWH in need of support to achieve viral non-suppression., (© 2024 The Authors. HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.)
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- 2024
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20. Hearing impaired persons' experiences with the online Swedish Individualized Active Communication Education (I-ACE) program: A feasibility study.
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Werther L, Thorén E, Brännström J, Andersson G, and Öberg M
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Even with optimally fitted hearing aids, many individuals with hearing impairment struggle to hear in situations with difficult listening conditions. Active Communication Education (ACE) is an interactive group rehabilitation program aimed at helping people with hearing loss communicate more effectively using communication strategies to better cope with everyday life. To increase accessibility and allow more people to benefit from the ACE program, a modified individualized version was created. The purpose of this study was to examine the feasibility of providing the Swedish Individualized Active Communication Education (I-ACE) program via an online platform and to explore hearing impaired persons' experiences with the program. For five weeks, ten participants completed the Swedish I-ACE through an online platform. The participants were assigned a new chapter to complete each week and later received individual feedback on their work via the platform. The participants were asked to complete an evaluation form regarding the content and their experiences during and after completing the I-ACE. They were later interviewed to provide more detailed information on their experiences with the program. The program completion rate was 80 %. Participants found the I-ACE program to be informative and relevant but somewhat repetitive. However, only a few participants thought of the repetitiveness as negative. Few participants reported difficulties using the platform. This study indicated that it is feasible to provide the I-ACE program via an online platform and that the content of the program is informative, relevant, and comprehensible. Further research evaluating the effects of the I-ACE is warranted., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)
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- 2024
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21. The molecular epidemiology of HIV-1 in Sweden 1996 to 2022, and the influence of migration from Ukraine.
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Weibull Wärnberg A, Brännström J, Elvstam O, Gisslén M, Månsson F, Sönnerborg A, and van de Klundert MA
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- Humans, Sweden epidemiology, Ukraine epidemiology, Molecular Epidemiology, HIV-1 genetics, HIV Infections drug therapy, HIV Seropositivity
- Abstract
BackgroundThe global distribution of HIV-1 subtypes is evolving, which is reflected in the Swedish HIV cohort. The subtype HIV-1A6, which may be prone to developing resistance to cabotegravir, is the most common subtype in Ukraine.AimWe aimed to examine trends in HIV-1 subtype distribution in Sweden, with a special focus on HIV-1A6, and to describe the virology, demography and treatment of Ukrainian people living with HIV (PLWH) who migrated to Sweden in 2022.MethodsData about PLWH in Sweden are included in a national database (InfCareHIV). We used the online tool COMET to establish HIV-1 subtypes and the Stanford database to define drug resistance mutations. We investigated the relation between virological characteristics and demographic data.ResultsThe early epidemic was predominated by HIV-1 subtype B infections in people born in Sweden. After 1990, the majority of new PLWH in Sweden were PLWH migrating to Sweden, resulting in an increasingly diverse epidemic. In 2022, HIV-1A6 had become the sixth most common subtype in Sweden and 98 of the 431 new PLWH that were registered in Sweden came from Ukraine. We detected HIV RNA in plasma of 32 Ukrainian patients (34%), of whom 17 were previously undiagnosed, 10 had interrupted therapy and five were previously diagnosed but not treated. We found HIV-1A6 in 23 of 24 sequenced patients.ConclusionThe molecular HIV epidemiology in Sweden continues to diversify and PLWH unaware of their HIV status and predominance of HIV-1A6 should be considered when arranging care directed at PLWH from Ukraine.
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- 2023
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22. Cohort profile: InfCareHIV, a prospective registry-based cohort study of people with diagnosed HIV in Sweden.
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Carlander C, Brännström J, Månsson F, Elvstam O, Albinsson P, Blom S, Mattsson L, Hovmöller S, Norrgren H, Mellgren Å, Svedhem V, Gisslén M, and Sönnerborg A
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- Male, Humans, Female, Sweden epidemiology, Cohort Studies, Quality of Life, Viral Load, HIV Infections drug therapy, HIV Infections epidemiology, HIV Infections prevention & control, Anti-HIV Agents therapeutic use, Diabetes Mellitus, Type 2 drug therapy
- Abstract
Purpose: The Swedish InfCareHIV cohort was established in 2003 to ensure equal and effective care of people living with HIV (PLHIV) and enable long-term follow-up. InfCareHIV functions equally as a decision support system as a quality registry, ensuring up-to-date data reported in real time., Participants: InfCareHIV includes data on >99% of all people with diagnosed HIV in Sweden and up to now 13 029 have been included in the cohort. InfCareHIV includes data on HIV-related biomarkers and antiretroviral therapies (ART) and also on demographics, patient-reported outcome measures and patient-reported experience measures., Findings to Date: Sweden was in 2015 the first country to reach the UNAIDS (United Nations Programme on HIV/AIDS)/WHO's 90-90-90 goals. Late diagnosis of HIV infection was identified as a key problem in the Swedish HIV-epidemic, and low-level HIV viraemia while on ART associated with all-cause mortality. Increased HIV RNA load in the cerebrospinal fluid (CSF) despite suppression of the plasma viral load was found in 5% of PLHIV, a phenomenon referred to as 'CSF viral escape'. Dolutegravir-based treatment in PLHIV with pre-existing nucleoside reverse transcriptase inhibitor-mutations was non-inferior to protease inhibitor-based regimens. An increase of transmitted drug resistance was observed in the InfCareHIV cohort. Lower efficacy for protease inhibitors was not due to lower adherence to treatment. Incidence of type 2 diabetes and insulin resistance was high in the ageing HIV population. Despite ART, the risk of infection-related cancer as well as lung cancer was increased in PLHIV compared with HIV-negative. PLHIV were less likely successfully treated for cervical precancer and more likely to have human papillomavirus types not included in current HPV vaccines. Self-reported sexual satisfaction in PLHIV is improving and is higher in women than men., Future Plans: InfCareHIV provides a unique base to study and further improve long-term treatment outcomes, comorbidity management and health-related quality of life in people with HIV in Sweden., Competing Interests: Competing interests: CC has received lecture, moderator and advisory board fees from GSK/ViiV, Gilead Sciences and MSD and an unrestricted Nordic Fellowship Grant from Gilead Sciences Nordic. JB has received lecture and advisory board fees from GSK/ViiV and Gilead. FM has received lecture and advisory board fees from GSK/ViiV, AstraZeneca and Gilead Sciences. OE has received a grant to his institution from Pfizer and honoraria as speaker from Gilead Sciences. HN has received advisory board fees from Gilead and AbbVie. AM has received lecture and advisory board fees from GSK/ViiV, Gilead Sciences and Pfizer. MG has received research grants from Gilead Sciences and Janssen-Cilag and honoraria as speaker, DSMB committee member and/or scientific advisor from Amgen, AstraZeneca Biogen, Bristol-Myers Squibb, Gilead Sciences, GlaxoSmithKline/ViiV, Janssen-Cilag, MSD, Novocure, Novo Nordic, Pfizer and Sanofi. AS has received research grants from Gilead Sciences and honoraria as speaker, DSMB committee member and/or scientific advisor from AstraZeneca, Bristol-Myers Squibb, Gilead Sciences, GlaxoSmithKline/ViiV and MSD. All other authors declare no competing interests., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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23. The role of HIV/hepatitis B virus/hepatitis C virus RNA+ triple infection in end-stage liver disease and all-cause mortality in Europe.
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Mocroft A, Geressu A, Beguelin C, Llibre JM, Lazarus JV, Tomazic J, Smidt J, Parczewski M, Brännström J, Sedlacek D, Degen O, van der Valk M, Paduta D, Flamholc L, Schmid P, Orkin C, Nielsen LN, Hoffmann C, Beniowski M, Oprea C, Begovac J, and Peters L
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- Humans, Hepatitis B virus, Hepacivirus, RNA, End Stage Liver Disease, HIV Infections complications
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Background: There are limited data on end-stage liver disease (ESLD) and mortality in people with HIV (PWH) coinfected with both hepatitis B virus (HBV) and hepatitis C virus (HCV)., Methods: All PWH aged greater than 18 under follow-up in EuroSIDA positive for HBsAg (HBV), and/or HCVRNA+, were followed from baseline (latest of 1 January 2001, EuroSIDA recruitment, known HBV/HCV status) to ESLD, death, last visit, or 31 December 2020. Follow-up while HCVRNA- was excluded. In two separate models, Poisson regression compared three groups updated over time; HIV/HBV, HIV/HCV, and HIV/HBV/HCV., Results: Among 5733 included individuals, 4476 (78.1%) had HIV/HCV, 953 (16.6%) had HIV/HBV and 304 (5.3%) had HIV/HBV/HCV. In total, 289 (5%) developed ESLD during 34 178 person-years of follow-up (PYFU), incidence 8.5/1000 PYFU [95% confidence interval (CI) 7.5-9.4] and 707 deaths occurred during 34671 PYFU (incidence 20.4/1000 PYFU; 95% CI 18.9-21.9). After adjustment, compared with those with HIV/HCV, persons with HIV/HBV had significantly lower rates of ESLD [adjusted incidence rate ratio (aIRR) 0.53; 95% CI 0.34-0.81]. Those with HIV/HBV/HCV had marginally significantly higher rates of ESLD (aIRR 1.49; 95% CI 0.98-2.26). Those under follow-up in 2014 or later had significantly lower rates of ESLD compared with 2007-2013 (aIRR 0.65; 95% CI 0.47-0.89). Differences in ESLD between the three groups were most pronounced in those aged at least 40. After adjustment, there were no significant differences in all-cause mortality across the three groups., Conclusion: HIV/HBV-coinfected individuals had lower rates of ESLD and HIV/HBV/HCV had higher rates of ESLD compared with those with HIV/HCV, especially in those aged more than 40. ESLD decreased over time across all groups., Clinicaltrialsgov Identifier: NCT02699736., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2023
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24. Late diagnosis of HIV: An updated consensus definition.
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Croxford S, Stengaard AR, Brännström J, Combs L, Dedes N, Girardi E, Grabar S, Kirk O, Kuchukhidze G, Lazarus JV, Noori T, Pharris A, Raben D, Rockstroh JK, Simões D, Sullivan AK, Van Beckhoven D, and Delpech VC
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- Humans, Delayed Diagnosis, Consensus, CD4 Lymphocyte Count, Risk Factors, Acquired Immunodeficiency Syndrome diagnosis, HIV Infections
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Introduction: In recent years, HIV testing frequency has increased, resulting in more people being diagnosed during seroconversion with a temporarily low CD4 count. Using the current consensus definition of late HIV presentation ('presenting for care with a CD4 count < 350 cells/μL or an AIDS-defining event, regardless of CD4 count') these individuals would be incorrectly assigned as being diagnosed late., Methods: In spring 2022, a European expert group convened to revise the current late HIV presentation consensus definition. A survey on data availability to apply this revised definition was sent to nominated European focal points responsible for HIV surveillance (n = 53)., Results: Experts agreed that the updated definition should refer to late HIV diagnosis rather than presentation and include the following addition: People with evidence of recent infection should be reclassified as 'not late', with evidence of recent infection considered hierarchically. The individual must have: (i) laboratory evidence of recent infection; (ii) a last negative HIV test within 12 months of diagnosis; or (iii) clinical evidence of acute infection. People with evidence of being previously diagnosed abroad should be excluded. A total of 18 countries responded to the survey; 83% reported capturing CD4 count and/or AIDS at diagnosis through national surveillance, 67% captured last negative test and/or previous HIV diagnosis, 61% captured seroconversion illness at diagnosis and 28% captured incident antibody results., Conclusions: Accurate data on late diagnosis are important to describe the effects of testing programmes. Reclassification of individuals with recent infection will help to better identify populations most at risk of poor HIV outcomes and areas for intervention., (© 2022 The Authors. HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.)
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- 2022
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25. Best ear hearing level, time factors and language outcome in Swedish children with mild and moderate hearing loss with hearing aids.
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Sahlén B, Ibertsson T, Asker-Árnason L, Brännström J, and Hansson K
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- Child, Humans, Sweden, Time Factors, Voice Quality, Hearing, Hearing Aids, Hearing Loss diagnosis, Language Disorders
- Abstract
Aim: The risk for language disorder is high in children with all levels of hearing loss (HL). Early identification and intervention should be as important for children with mild HL as for those with more severe HL. Despite new-born hearing screening, a recent survey of speech language therapist services in southern Sweden indicates that children with mild and moderate HL are severely neglected when it comes to language assessment and language intervention. In this study we explore associations between Best Ear Hearing Level (BEHL), time factors and language skills in Swedish children with HL with hearing aids (HA)., Method: Participants were 19 children with mild HL (BEHL 23-39) and 22 children with moderate HL (BEHL 40-70) aged 5-15 years. Information on age at diagnosis and at HA fitting were collected. The children performed a nonword repetition and a sentence comprehension task., Results: The time elapsed between diagnosis and fitting with HA was longer for the children with mild HL.Participants with mild HL received their HA significantly later than children with moderate HL. No association between BEHL and the two language measures was found, and language skills were not better in children with mild than moderate HL. 17% of participants performed below cut-off for language disorder on both language measures., Conclusion: Given the risk for long-term academic and social consequences of even mild HL delayed HA intervention for children with HLleads to serious concerns by families, clinicians, and pedagogues.
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- 2022
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26. Observational cohort study of rilpivirine (RPV) utilization in Europe.
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Cozzi-Lepri A, Peters L, Pelchen-Matthews A, Neesgaard B, De Wit S, Johansen IS, Edwards S, Stephan C, Adamis G, Staub T, Zagalo A, Domingo P, Elbirt D, Kusejko K, Brännström J, Paduta D, Trofimova T, Szlavik J, Zilmer K, Losso M, Van Eygen V, Pai H, Lundgren J, and Mocroft A
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- Humans, Rilpivirine therapeutic use, Treatment Outcome, Viral Load, Anti-HIV Agents adverse effects, HIV Infections drug therapy, HIV-1 genetics
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Introduction: Data on safety and effectiveness of RPV from the real-world setting as well as comparisons with other NNRTIs such as efavirenz (EFV) remain scarce., Methods: Participants of EuroSIDA were included if they had started a RPV- or an EFV-containing regimen over November 2011-December 2017. Statistical testing was conducted using non-parametric Mann-Whitney U test and Chi-square test. A logistic regression model was used to compare participants' characteristics by treatment group. Kaplan-Meier analysis was used to estimate the cumulative risk of virological failure (VF, two consecutive values > 50 copies/mL)., Results: 1,355 PLWH who started a RPV-based regimen (11% ART-naïve), as well as 333 initiating an EFV-containing regimen were included. Participants who started RPV differed from those starting EFV for demographics (age, geographical region) and immune-virological profiles (CD4 count, HIV RNA). The cumulative risk of VF for the RPV-based group was 4.5% (95% CI 3.3-5.7%) by 2 years from starting treatment (71 total VF events). Five out of 15 (33%) with resistance data available in the RPV group showed resistance-associated mutations vs. 3/13 (23%) among those in the EFV group. Discontinuations due to intolerance/toxicity were reported for 73 (15%) of RPV- vs. 45 (30%) of EFV-treated participants (p = 0.0001). The main difference was for toxicity of central nervous system (CNS, 3% vs. 22%, p < 0.001)., Conclusion: Our estimates of VF > 50 copies/mL and resistance in participants treated with RPV were similar to those reported by other studies. RPV safety profile was favourable with less frequent discontinuation due to toxicity than EFV (especially for CNS)., (© 2022. The Author(s).)
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- 2022
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27. The hepatitis C cascade of care in HIV/hepatitis C virus coinfected individuals in Europe: regional and intra-regional differences.
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Fursa O, Mocroft A, Lazarus JV, Amele S, Lundgren J, Matulionyte R, Rasmussen LD, Rockstroh JK, Parczewski M, Jilich D, Moreno S, Vassilenko A, Lacombe K, Wandeler G, Borodulina E, Brännström J, Wiese L, Orkin C, Behrens GMN, Mansinho K, Portu JJ, and Peters L
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- Antiviral Agents therapeutic use, Europe epidemiology, Hepacivirus genetics, Humans, Prospective Studies, RNA therapeutic use, Coinfection drug therapy, HIV Infections complications, HIV Infections drug therapy, HIV Infections epidemiology, Hepatitis C complications, Hepatitis C drug therapy, Hepatitis C epidemiology, Hepatitis C, Chronic complications, Hepatitis C, Chronic drug therapy, Hepatitis C, Chronic epidemiology
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Background: Following the introduction of direct-acting antiviral therapy in 2013, WHO launched the first Global Health Sector Strategy on Viral Hepatitis. We describe a hepatitis C virus (HCV) cascade of care in people with HIV (PWH) across Europe in terms of reaching the WHO elimination targets of diagnosing 90% and treating 80% of HCV-infected individuals., Methods: HIV/HCV-coinfected participants in the EuroSIDA cohort under prospective follow-up at October 1, 2019, were described using a nine-stage cascade of care. Care cascades were constructed across Europe, on a regional (n = 5) and country (n = 21) level., Results: Of 4773 anti-HCV positive PWH, 4446 [93.1%, 95% confidence interval (CI) 92.4-93.9)] were ever tested for HCV RNA, and 19.0% (95% CI 16.4-21.6) were currently HCV RNA positive, with the highest prevalence in Eastern and Central-Eastern Europe (33.7 and 29.6%, respectively). In Eastern Europe, 78.1% of the estimated number of chronic infections have been diagnosed, whereas this proportion was above 95% in the other four regions. Overall, 3116 persons have ever started treatment (72.5% of the ever chronically infected, 95% CI 70.9-74.0) and 2404 individuals (55.9% of the ever chronically infected, 95% CI 53.9-57.9) were cured. Cure proportion ranged from 11.2% in Belarus to 87.2% in Austria., Conclusion: In all regions except Eastern Europe, more than 90% of the study participants have been tested for HCV-RNA. In Southern and Central-Western regions, more than 80% ever chronically HCV-infected PWH received treatment. The proportion with cured HCV infection did not exceed 80% in any region, with significant heterogeneity between countries., Summary: In a pan-European cohort of PWH, all regions except Eastern Europe achieved the WHO target of diagnosing 90% of chronic HCV infections, while the target of treating 80% of eligible persons was achieved in none of the five regions., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2022
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28. Point-of-care testing in a high-income country paediatric emergency department: a qualitative study in Sweden.
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Rasti R, Brännström J, Mårtensson A, Zenk I, Gantelius J, Gaudenzi G, Alvesson HM, and Alfvén T
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- Child, Focus Groups, Humans, Point-of-Care Systems, Qualitative Research, Sweden, Emergency Service, Hospital, Point-of-Care Testing
- Abstract
Objectives: In many resource-limited health systems, point-of-care tests (POCTs) are the only means for clinical patient sample analyses. However, the speed and simplicity of POCTs also makes their use appealing to clinicians in high-income countries (HICs), despite greater laboratory accessibility. Although also part of the clinical routine in HICs, clinician perceptions of the utility of POCTs are relatively unknown in such settings as compared with others. In a Swedish paediatric emergency department (PED) where POCT use is routine, we aimed to characterise healthcare providers' perspectives on the clinical utility of POCTs and explore their implementation in the local setting; to discuss and compare such perspectives, to those reported in other settings; and finally, to gather requests for ideal novel POCTs., Design: Qualitative focus group discussions study. A data-driven content analysis approach was used for analysis., Setting: The PED of a secondary paediatric hospital in Stockholm, Sweden., Participants: Twenty-four healthcare providers clinically active at the PED were enrolled in six focus groups., Results: A range of POCTs was routinely used. The emerging theme Utility of our POCT use is double-edged illustrated the perceived utility of POCTs. While POCT services were considered to have clinical and social value, the local routine for their use was named to distract clinicians from the care for patients. Requests were made for ideal POCTs and their implementation., Conclusion: Despite their clinical integration, deficient implementation routines limit the benefits of POCT services to this well-resourced paediatric clinic. As such deficiencies are shared with other settings, it is suggested that some characteristics of POCTs and of their utility are less related to resource level and more to policy deficiency. To address this, we propose the appointment of skilled laboratory personnel as ambassadors to hospital clinics offering POCT services, to ensure higher utility of such services., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2021
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29. Development of type 2 diabetes and insulin resistance in people with HIV infection: Prevalence, incidence and associated factors.
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Bratt G, Brännström J, Missalidis C, and Nyström T
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- Aged, Aged, 80 and over, Cohort Studies, Diabetes Mellitus, Type 1 complications, Diabetes Mellitus, Type 1 epidemiology, Female, Follow-Up Studies, Humans, Incidence, Inflammation complications, Male, Middle Aged, Multivariate Analysis, Prevalence, Sweden epidemiology, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 epidemiology, HIV Infections complications, HIV Infections epidemiology, Insulin Resistance
- Abstract
Background: Diabetes and insulin resistance is an emerging issue in people with HIV. HIV-related mortality and morbidities have decreased markedly over the last few decades, while co-morbidities including type 2 diabetes (T2D) have increased., Setting: This study investigated the incidence of T2D and insulin resistance in a cohort of HIV-patients on effective treatment., Methods: Prevalence and baseline predictors of T2D were assessed in a cohort of 570 HIV-positive patients 50 years or older. Patients without diabetes (n = 505) were followed prospectively over a median period of 7.25 year (2012-2020) until T2D development, death or end of the study. T2D was defined as repeated fasting glucose values ≥7.0 mmol/L. Insulin resistance was defined as HOMA-IR ≥3.0. Predictors of T2D development (HIV-related parameters, lipids, hypertension, central obesity, inflammation, smoking and use of statins) were assessed using logistic regression analysis., Results: 30% (153/505) had insulin resistance. During follow up (3485 patient-years) 9% (43/505) developed T2D and 7% (36/505) insulin resistance. Thus, at follow up the prevalence of either T2D or insulin resistance was 46% (232/505). T2D incidence was 1.2/100 patient-years. In multivariate analysis, after adjustment for age, T2D development was associated with baseline insulin resistance, hypertriglyceridemia, central obesity and statin treatment, but no HIV-related factors., Conclusion: The incidence of T2D in this cohort of patients with well controlled HIV-infection was high. The predictive factors associated with the development of T2D were not unique for HIV positive patients. The findings underline the importance of lifestyle changes in avoidance of T2D in people with HIV., Competing Interests: The authors have declared that no competing interests exist.
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- 2021
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30. Herpesvirus infections, antiviral treatment, and the risk of dementia-a registry-based cohort study in Sweden.
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Lopatko Lindman K, Hemmingsson ES, Weidung B, Brännström J, Josefsson M, Olsson J, Elgh F, Nordström P, and Lövheim H
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Introduction: Herpesviruses, including Herpes simplex virus type 1 (HSV1) and varicella zoster-virus (VZV), have been implicated in Alzheimer's disease (AD) development. Likewise, antiviral treatment has been suggested to protect against dementia development in herpes-infected individuals., Methods: The study enrolled 265,172 subjects aged ≥ 50 years, with diagnoses of VZV or HSV, or prescribed antiviral drugs between 31 December 2005 and 31 December 2017. Controls were matched in a 1:1 ratio by sex and birth year., Results: Antiviral treatment was associated with decreased risk of dementia (adjusted hazard ratio [HR] 0.89, 95% confidence interval [CI] 0.86 to 0.92), while herpes infection without antiviral drugs increased the risk of dementia (adjusted HR 1.50, 95% CI 1.29 to 1.74)., Discussion: Antiviral treatment was associated with a reduced long-term risk of dementia among individuals with overt signs of herpes infection. This is consistent with earlier findings indicating that herpesviruses are involved in the pathogenesis of AD., Competing Interests: The authors have no conflicts of interest., (© 2020 The Authors. Alzheimer's & Dementia: Translational Research & Clinical Interventions published by Wiley Periodicals, Inc. on behalf of Alzheimer's Association.)
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- 2021
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31. High-throughput sequencing reveals a high prevalence of pretreatment HIV-1 drug resistance in Sweden.
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Andersson E, Ambikan A, Brännström J, Aralaguppe SG, Yilmaz A, Albert J, Neogi U, and Sönnerborg A
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- Africa South of the Sahara, Asia, Cross-Sectional Studies, Genotype, High-Throughput Nucleotide Sequencing, Humans, Mutation drug effects, Prevalence, Sweden epidemiology, Anti-HIV Agents therapeutic use, Drug Resistance, Viral, HIV Infections drug therapy, HIV Infections epidemiology, HIV-1 drug effects, HIV-1 genetics
- Abstract
Objectives: HIV-1 pretreatment drug resistance (PDR) is a global concern. Our aim was to evaluate high-throughput sequencing (HTS) for HIV-1 resistance testing and describe PDR in Sweden, where 75% of diagnosed individuals are foreign-born., Design: Cross-sectional study., Methods: Individuals entering HIV-1 care in Sweden 2017 to March 2019 (n = 400) were included if a viremic sample was available (n = 220). HTS was performed using an in-house assay. Drug resistance mutations (DRMs) (based on Stanford HIV DB vs. 8.7) at levels 1-5%, 5-19% and at least 20% of the viral population were described. Results from HTS and routine Sanger sequencing were compared., Results: HTS was successful in 88% of patients, 92% when viral load was at least 1000 copies/ml. DRMs at any level in protease and/or reverse transcriptase were detected in 95 individuals (49%), whereas DRMs at least 20% in 35 (18%) individuals. DRMs at least 20% correlated well to findings in routine Sanger sequencing. Protease/reverse transcriptase (PR/RT) DRMs at least 20% were predicted by treatment exposure; adjusted OR 9.28 (95% CI 2.24-38.43; P = 0.002) and origin in Asia; adjusted OR 20.65 (95% CI 1.66-256.24; P = 0.02). Nonnucleoside reverse transcriptase inhibitor (NNRTI) DRMs at least 20% were common (16%) and over-represented in individuals originating from sub-Saharan Africa or Asia. Low-level integrase strand transfer inhibitor (INSTI) DRMs less than 20% were detected in 15 individuals (8%) with no association with INSTI exposure., Conclusion: Our HTS can efficiently detect PDR and findings of DRMs at least 20% compare well to routine Sanger sequencing. The high prevalence of PDR was because of NNRTI DRMs and associated with migration from areas with emerging PDR., (Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2021
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32. Contagiousness in treated HIV-1 infection.
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Eriksen J, Albert J, Axelsson M, Berglund T, Brännström J, Gaines H, Gisslén M, Gröön P, Hagstam P, Navér L, Pettersson K, Stenkvist J, Sönnerborg A, and Tegnell A
- Subjects
- Anti-Retroviral Agents therapeutic use, Child, Female, Humans, Infectious Disease Transmission, Vertical, Pregnancy, Sweden epidemiology, HIV Infections drug therapy, HIV Infections epidemiology, HIV-1
- Abstract
Background: Effective antiretroviral treatment of HIV-1, defined as continuously undetectable virus in blood, has substantial effects on the infectiousness and spread of HIV., Aim: This paper outlines the assessment of the Swedish Reference Group for Antiviral Therapy (RAV) and Public Health Agency of Sweden regarding contagiousness of HIV-infected persons on antiretroviral therapy (ART). Results and Conclusion: The expert group concludes that there is no risk of transmission of HIV during vaginal or anal intercourse if the HIV-infected person fulfils the criteria for effective ART. Summary: The effective antiretroviral therapy (ART) for HIV-1 infection has dramatically reduced the morbidity and mortality among people who live with HIV. ART also has a noticeable effect on the infectiousness and on the spread of the disease in society. Knowledge about this has grown gradually. For ART to be regarded effective, the level of the HIV RNA in the plasma should be repeatedly and continuously undetectable and the patient should be assessed as continually having high adherence to treatment. Based on available knowledge the Swedish Reference Group for Antiviral Therapy (RAV) and the Public Health Agency of Sweden make the following assessment: There is no risk of HIV transmission during vaginal or anal intercourse if the HIV positive person fulfils the criteria for effective treatment. This includes intercourse where a condom is not used. However, there are a number of other reasons for recommending the use of condoms, primarily to protect against the transmission of other STIs (sexually transmitted infections) and hepatitis, as well as unwanted pregnancy. The occurrence of other STIs does not affect the risk of HIV transmission in persons on effective ART. It is plausible that the risk for transmission of HIV infection between people who inject drugs and share injection equipment is reduced if the individual with HIV is on effective ART, but there are no studies that directly show this. The risk of transmission from mother to child during pregnancy, labour and delivery is very low if the mother's treatment is initiated well before delivery and if the treatment aim of undetectable virus levels is attained. This is dependent on healthcare services being aware of the mother's HIV infection at an early stage. In most contacts with health and medical care, including dental care, the risk of transmission is not significant if the patient is on effective treatment, but the risk may remain, although considerably reduced, in more advanced interventions such as surgery. When an incident with risk of transmission occurs, the patient must always inform those potentially exposed about his or her HIV infection.
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- 2021
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33. Reduced grey- and white matter volumes due to unilateral hearing loss following treatment for vestibular schwannoma.
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Heggdal POL, Larsen KS, Brännström J, Aarstad HJ, and Specht K
- Abstract
Objective: Previous studies of the consequences of unilateral hearing loss (UHL) on the functional-structural organization of the brain has included subjects with various degrees of UHL. We suggest that the consequences of a total loss of hearing in one ear might differ from those seen in subjects with residual hearing in the affected ear. Thus, the main aim of the present study was to compare the structural properties of auditory and non-auditory brain regions in persons with complete UHL to those of normal hearing controls. We hypothesize that the consequences of complete UHL following treatment for vestibular schwannoma will differ between ipsi- and contralateral structures, as well as between right- and left side deafness., Design: A 3T Siemens Prisma MR-scanner was used. Anatomical images were acquired using a high-resolution T1-weighted sequence. Grey- and white matter volumes were assessed using voxel-based morphometry., Study Sample: Twenty-two patients with left- or right-side unilateral hearing loss. Fifty normal hearing controls., Results: Reductions in grey- and white matter volumes were seen in cortical and sub-cortical regions, mainly in the right hemisphere including the auditory cortex, lingual gyrus, cuneus, middle temporal gyrus, occipital fusiform gyrus, middle cingulate gyrus and the superior temporal gyrus. Patients displayed reduced grey- and white matter volumes in cerebellar exterior structures ipsilateral to the tumor side., Conclusion: When compared to controls, right side hearing loss yields more widespread reduction of grey matter volume than left side hearing loss. The findings of reduced grey- and white matter volumes in auditory and non-auditory brain regions could be related to problems with speech perception in adverse listening conditions, increased listening effort and reduced quality of life reported by persons with unilateral hearing loss despite normal hearing in the unaffected ear., Competing Interests: The authors declare no conflict of interest., (© 2020 The Author(s).)
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- 2020
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34. Mapping endothelial-cell diversity in cerebral cavernous malformations at single-cell resolution.
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Orsenigo F, Conze LL, Jauhiainen S, Corada M, Lazzaroni F, Malinverno M, Sundell V, Cunha SI, Brännström J, Globisch MA, Maderna C, Lampugnani MG, Magnusson PU, and Dejana E
- Subjects
- Animals, Apoptosis Regulatory Proteins metabolism, Arteries pathology, Brain blood supply, Brain pathology, Cell Differentiation, Disease Models, Animal, Gene Deletion, Immunohistochemistry, Mice, Mice, Inbred C57BL, Microscopy, Confocal, Mitosis, Neovascularization, Pathologic, Phenotype, RNA-Seq, Sequence Analysis, RNA, Signal Transduction genetics, Single-Cell Analysis, Tamoxifen pharmacology, Transcriptome, Endothelial Cells cytology, Hemangioma, Cavernous, Central Nervous System physiopathology
- Abstract
Cerebral cavernous malformation (CCM) is a rare neurovascular disease that is characterized by enlarged and irregular blood vessels that often lead to cerebral hemorrhage. Loss-of-function mutations to any of three genes results in CCM lesion formation; namely, KRIT1 , CCM2 , and PDCD10 (CCM3) . Here, we report for the first time in-depth single-cell RNA sequencing, combined with spatial transcriptomics and immunohistochemistry, to comprehensively characterize subclasses of brain endothelial cells (ECs) under both normal conditions and after deletion of Pdcd10 ( Ccm3) in a mouse model of CCM. Integrated single-cell analysis identifies arterial ECs as refractory to CCM transformation. Conversely, a subset of angiogenic venous capillary ECs and respective resident endothelial progenitors appear to be at the origin of CCM lesions. These data are relevant for the understanding of the plasticity of the brain vascular system and provide novel insights into the molecular basis of CCM disease at the single cell level., Competing Interests: FO, LC, SJ, MC, FL, MM, VS, SC, JB, MG, CM, ML, PM No competing interests declared, ED Reviewing editor, eLife, (© 2020, Orsenigo et al.)
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- 2020
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35. Antipsychotic Drugs and Hip Fracture: Associations Before and After the Initiation of Treatment.
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Brännström J, Lövheim H, Gustafson Y, and Nordström P
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- Aged, Aged, 80 and over, Cohort Studies, Female, Humans, Male, Odds Ratio, Risk Factors, Sweden epidemiology, Antipsychotic Agents adverse effects, Hip Fractures chemically induced, Hip Fractures epidemiology
- Abstract
Objective: To study the association between antipsychotic drug treatment and hip fracture, before and after the initiation of treatment., Design: Nationwide cohort study., Setting and Participants: In this study based on several Swedish registers, all individuals age ≥65 years who filled prescriptions for antipsychotic drugs in 2007-2017 were matched 1:1 by sex and age with controls, resulting in a cohort of 255,274 individuals., Measures: Associations between antipsychotic drug treatment and hip fracture were investigated using multivariable conditional logistic regression models and flexible parametric survival models for nonproportional hazards, starting 1 year before the first prescription was filled and extending to 1 year thereafter., Results: The studied cohort had a mean age of 81.5 (standard deviation, 8.1) years; 152,890 (59.9%) individuals were women. Antipsychotic drug use was associated with an increased risk of hip fracture in all studied time frames, before and after the initiation of treatment. The risk was highest 16-30 days before the initiation of treatment (odds ratio 9.09; 95% confidence interval 7.00-11.81). The pattern was consistent in subgroup analyses of users of conventional and atypical antipsychotics, men and women, as well as in younger old and older old participants. The association with hip fracture was not influenced by antipsychotic drug dose., Conclusions and Implications: The association between antipsychotic drug use and the risk of hip fracture was observed before the initiation of antipsychotic treatment. This finding suggests that factors other than exposure to antipsychotic drugs are responsible for the increased risk of hip fracture in the treatment group., (Copyright © 2020 AMDA — The Society for Post-Acute and Long-Term Care Medicine. Published by Elsevier Inc. All rights reserved.)
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- 2020
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36. Implementation and evaluation of a teacher intervention program on classroom communication.
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Karjalainen S, Sahlén B, Falck A, Brännström J, and Lyberg-Åhlander V
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- Adult, Burnout, Professional etiology, Burnout, Professional physiopathology, Burnout, Professional psychology, Child, Female, Fixation, Ocular, Gestures, Humans, Learning, Male, Middle Aged, Occupational Diseases diagnosis, Occupational Diseases physiopathology, Occupational Diseases psychology, Occupational Health, Self Efficacy, Time Factors, Treatment Outcome, Verbal Behavior, Voice Disorders diagnosis, Voice Disorders physiopathology, Voice Disorders psychology, Workplace psychology, Burnout, Professional prevention & control, Communication, Inservice Training, Occupational Diseases prevention & control, School Teachers psychology, Voice Disorders prevention & control, Voice Quality, Voice Training
- Abstract
Background: Media frequently report on overall work-place challenges in Swedish schools, including teachers' working conditions, their well-being, and students' declining results. Language is the key to success in every school subject. Therefore, optimal language learning environments are important. Poor sound environments affect teachers' vocal health, their general well-being, and students' performance. To provide better conditions for teachers and students, it is necessary to combine optimized room acoustics with other preventive measures such as vocal training and evidence-based tools to improve classroom communication. Teachers play a key role in the classroom and need knowledge and skills in communicative strategies to ensure first-class communication. The purpose of this study is to explore the effects of an intervention program for primary-school teachers comprising strategies for enhanced language learning and interactions in the classroom, with focus on teachers' verbal and body communication (voice, gaze, and gesture). Methods: Teachers ( n = 25) from seven schools teaching in school year 3-6 participated. Assessments were made pre/post intervention and at 5-weeks and 3-months follow-up. The assessments included teachers' self-assessments (questionnaires) of vocal health, self-efficacy, stress, burnout, and psychosocial work-environment. Results: The main results were significant decrease in voice problems at the 3-months follow-up and significant decrease of both stress and degree of burnout at 5-weeks follow-up. Self-efficacy score had increased significantly at 5-week follow-up. Conclusion: It can be concluded that the intervention program improves teachers' self-reported vocal health, decreases their perception of stress, and degree of burnout whilst increasing their sense of self-efficacy in classroom management.
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- 2020
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37. A virtual speaker in noisy classroom conditions: supporting or disrupting children's listening comprehension?
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Nirme J, Haake M, Lyberg Åhlander V, Brännström J, and Sahlén B
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- Acoustics, Age Factors, Attention, Child, Cues, Executive Function, Facility Design and Construction, Female, Humans, Male, Recognition, Psychology, Schools, Visual Perception, Comprehension, Noise adverse effects, Perceptual Masking, Speech Intelligibility, Speech Perception, Video Recording
- Abstract
Aim: Seeing a speaker's face facilitates speech recognition, particularly under noisy conditions. Evidence for how it might affect comprehension of the content of the speech is more sparse. We investigated how children's listening comprehension is affected by multi-talker babble noise, with or without presentation of a digitally animated virtual speaker, and whether successful comprehension is related to performance on a test of executive functioning., Materials and Methods: We performed a mixed-design experiment with 55 (34 female) participants (8- to 9-year-olds), recruited from Swedish elementary schools. The children were presented with four different narratives, each in one of four conditions: audio-only presentation in a quiet setting, audio-only presentation in noisy setting, audio-visual presentation in a quiet setting, and audio-visual presentation in a noisy setting. After each narrative, the children answered questions on the content and rated their perceived listening effort. Finally, they performed a test of executive functioning., Results: We found significantly fewer correct answers to explicit content questions after listening in noise. This negative effect was only mitigated to a marginally significant degree by audio-visual presentation. Strong executive function only predicted more correct answers in quiet settings., Conclusions: Altogether, our results are inconclusive regarding how seeing a virtual speaker affects listening comprehension. We discuss how methodological adjustments, including modifications to our virtual speaker, can be used to discriminate between possible explanations to our results and contribute to understanding the listening conditions children face in a typical classroom.
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- 2019
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38. Association Between Antidepressant Drug Use and Hip Fracture in Older People Before and After Treatment Initiation.
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Brännström J, Lövheim H, Gustafson Y, and Nordström P
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- Aged, Aged, 80 and over, Case-Control Studies, Female, Humans, Incidence, Male, Registries, Sweden epidemiology, Time Factors, Antidepressive Agents adverse effects, Hip Fractures epidemiology
- Abstract
Importance: Treatment with antidepressants has been associated with hip fracture. This association could restrict the treatment options, especially in older patients., Objective: To investigate the association between antidepressant drug treatment and hip fracture starting 1 year before the initiation of treatment., Design, Setting, and Participants: In this nationwide cohort study, 204 072 individuals in the Prescribed Drugs Register of Sweden's National Board of Health and Welfare aged 65 years or older who had a prescription of antidepressants filled between July 1, 2006, and December 31, 2011, were matched by birth year and sex to 1 control participant who was not prescribed antidepressants (for a total of 408 144 people in the register). Outcome data were collected from 1 year before to 1 year after the index date (date of prescription being filled). Data analysis was performed from July 1, 2005, to December 31, 2012., Exposures: First filled prescription of an antidepressant drug., Main Outcomes and Measures: Incident hip fractures occurring in the year before and year after initiation of antidepressant therapy were registered. Associations were investigated using multivariable conditional logistic regression models and flexible parametric models., Results: Of the 408 144 people in the register who were included in the study, 257 486 (63.1%) were women, with a mean (SD) age of 80.1 (7.2) years. Antidepressant users sustained more than twice as many hip fractures than did nonusers in the year before and year after the initiation of therapy (2.8% vs 1.1% and 3.5% vs 1.3%, respectively, per actual incidence figures). In adjusted analyses, the odds ratios were highest for the associations between antidepressant use and hip fracture 16 to 30 days before the prescription was filled (odds ratio, 5.76; 95% CI, 4.73-7.01). In all separate analyses of age groups, of men and women, and of individual antidepressants, the highest odds ratios were seen 16 to 30 days before initiation of treatment, and no clear dose-response relationship was seen., Conclusions and Relevance: The present study found an association between antidepressant drug use and hip fracture before and after the initiation of therapy. This finding raises questions about the association that should be further investigated in treatment studies.
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- 2019
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39. An fMRI-study on single-sided deafness: Spectral-temporal properties and side of stimulation modulates hemispheric dominance.
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Heggdal POL, Aarstad HJ, Brännström J, Vassbotn FS, and Specht K
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- Acoustic Stimulation, Adult, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Brain physiopathology, Functional Laterality physiology, Hearing Loss, Unilateral physiopathology
- Abstract
Objective: Our main aim was to investigate the blood oxygenation level dependent (BOLD) response to monaural and binaural speech- and non-speech stimuli as measured with fMRI in subjects with single-sided deafness and in normal hearing controls. We hypothesised that the response to monaural stimulation in both normal hearing subjects and persons with single-sided deafness would vary with the complexity and nature of the stimuli and the side of stimulation., Design: Patients with left- and right single-sided deafness and controls with normal hearing receiving either binaural or monaural stimuli were tested using speech and non-speech auditory stimuli in an event-related fMRI experiment., Study Sample: Twenty-two patients with single-sided deafness after treatment for vestibular schwannoma and 50 normal hearing controls., Results: Normal hearing persons receiving right side monaural stimuli activate bilateral temporal regions. Activation following left side monaural stimulation is more right lateralized. Persons with single-sided deafness respond similarly to controls to monaural stimulation. Persons with right side single-sided deafness show activation of frontal cortical regions not seen in persons with left side single-sided deafness following speech stimuli. This is possibly related to increased effort and more frequently reported problems with communication. Right side single-sided deafness is related to increased activation of areas usually related to processing of degraded input, including the thalamus., Conclusion: Hemispheric dominance following monaural auditory stimulation is modulated by the spectral-temporal properties of the stimuli and by which ear is stimulated. Differences between patients with right- and left side deafness suggests that right side deafness is related to increased activation of areas involved in processing of degraded input., (Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2019
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40. Listening Comprehension and Listening Effort in the Primary School Classroom.
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Rudner M, Lyberg-Åhlander V, Brännström J, Nirme J, Pichora-Fuller MK, and Sahlén B
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In the primary school classroom, children are exposed to multiple factors that combine to create adverse conditions for listening to and understanding what the teacher is saying. Despite the ubiquity of these conditions, there is little knowledge concerning the way in which various factors combine to influence listening comprehension and the effortfulness of listening. The aim of the present study was to investigate the combined effects of background noise, voice quality, and visual cues on children's listening comprehension and effort. To achieve this aim, we performed a set of four well-controlled, yet ecologically valid, experiments with 245 eight-year-old participants. Classroom listening conditions were simulated using a digitally animated talker with a dysphonic (hoarse) voice and background babble noise composed of several children talking. Results show that even low levels of babble noise interfere with listening comprehension, and there was some evidence that this effect was reduced by seeing the talker's face. Dysphonia did not significantly reduce listening comprehension scores, but it was considered unpleasant and made listening seem difficult, probably by reducing motivation to listen. We found some evidence that listening comprehension performance under adverse conditions is positively associated with individual differences in executive function. Overall, these results suggest that multiple factors combine to influence listening comprehension and effort for child listeners in the primary school classroom. The constellation of these room, talker, modality, and listener factors should be taken into account in the planning and design of educational and learning activities.
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- 2018
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41. Enhanced protection of the renal vascular endothelium improves early outcome in kidney transplantation: Preclinical investigations in pig and mouse.
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Nordling S, Brännström J, Carlsson F, Lu B, Salvaris E, Wanders A, Buijs J, Estrada S, Tolmachev V, Cowan PJ, Lorant T, and Magnusson PU
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- Animals, Brain Death pathology, Cryopreservation, Delayed Graft Function pathology, Endothelium, Vascular drug effects, Endothelium, Vascular transplantation, Graft Survival, Humans, Kidney drug effects, Kidney pathology, Mice, Renal Veins drug effects, Renal Veins growth & development, Reperfusion Injury drug therapy, Reperfusion Injury pathology, Reperfusion Injury prevention & control, Swine, Tissue Donors, Endothelium, Vascular growth & development, Heparin administration & dosage, Kidney growth & development, Kidney Transplantation
- Abstract
Ischemia reperfusion injury is one of the major complications responsible for delayed graft function in kidney transplantation. Applications to reduce reperfusion injury are essential due to the widespread use of kidneys from deceased organ donors where the risk for delayed graft function is especially prominent. We have recently shown that coating of inflamed or damaged endothelial cells with a unique heparin conjugate reduces thrombosis and leukocyte recruitment. In this study we evaluated the binding capacity of the heparin conjugate to cultured human endothelial cells, to kidneys from brain-dead porcine donors, and to murine kidneys during static cold storage. The heparin conjugate was able to stably bind cultured endothelial cells with high avidity, and to the renal vasculature of explanted kidneys from pigs and mice. Treatment of murine kidneys prior to transplantation reduced platelet deposition and leukocyte infiltration 24 hours post-transplantation, and significantly improved graft function. The present study thus shows the benefits of enhanced protection of the renal vasculature during cold storage, whereby increasing the antithrombotic and anti-adhesive properties of the vascular endothelium yields improved renal function early after transplantation.
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- 2018
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42. Generic quality of life in persons with hearing loss: a systematic literature review.
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Nordvik Ø, Laugen Heggdal PO, Brännström J, Vassbotn F, Aarstad AK, and Aarstad HJ
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Background: To the best of our knowledge, no empirically based consensus has been reached as to if, and to what extent, persons with hearing loss (HL) have reduced generic Quality of life (QoL). There seems to be limited knowledge regarding to what extent a hearing aid (HA) would improve QoL. The main aim of the present study was to review studies about the relationship between HL and QoL. A supporting aim was to study the association between distress and HL., Methods: Literature databases (Cinahl, Pub Med and Web of Science) were searched to identify relevant journal articles published in the period from January 2000 to March 17, 2016. We performed a primary search pertaining to the relationship between HL, HA and QoL (search number one) followed by a supporting search pertaining to the relationship between distress/mood/anxiety and HL (search number two). After checking for duplications and screening the titles of the papers, we read the abstracts of the remaining papers. The most relevant papers were read thoroughly, leaving us with the journal articles that met the inclusion criteria., Results: Twenty journal articles were included in the present review: 13 were found in the primary search (HL and QoL), and seven in the supporting search (HL and distress). The literature yields equivocal findings regarding the association between generic QoL and HL. A strong association between distress and HL was shown, where distressed persons tend to have a lowered generic QoL. It is suggested that QoL is lowered among HL patients. Some studies suggest an increased generic QoL following the use of HA, especially during the first few months after initiation of treatment. Other studies suggest that HA use is one of several possible factors that contribute to improve generic QoL., Conclusions: The majority of the studies suggest that HL is associated with reduced generic QoL. Using hearing aids seem to improve general QoL at follow-up within the first year. HL is a risk factor for distress. Further research is needed to explore the relationship between HL and generic QoL, in addition to the importance of influencing variables on this relationship., Competing Interests: Not applicable due to study design and article type.Not applicable due to study design and article type.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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- 2018
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43. Clinical Application and Psychometric Properties of a Norwegian Questionnaire for the Self-Assessment of Communication in Quiet and Adverse Conditions Using Two Revised APHAB Subscales.
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Heggdal POL, Nordvik Ø, Brännström J, Vassbotn F, Aarstad AK, and Aarstad HJ
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- Adult, Age Factors, Aged, Analysis of Variance, Case-Control Studies, Female, Hearing Loss diagnosis, Humans, Linear Models, Male, Middle Aged, Norway, Self-Assessment, Severity of Illness Index, Sex Factors, Communication, Hearing Aids statistics & numerical data, Hearing Loss psychology, Hearing Loss rehabilitation, Psychometrics, Surveys and Questionnaires
- Abstract
Background: Difficulty in following and understanding conversation in different daily life situations is a common complaint among persons with hearing loss. To the best of our knowledge, there is currently no published validated Norwegian questionnaire available that allows for a self-assessment of unaided communication ability in a population with hearing loss., Purpose: The aims of the present study were to investigate a questionnaire for the self-assessment of communication ability, examine the psychometric properties of this questionnaire, and explore how demographic variables such as degree of hearing loss, age, and sex influence response patterns., Research Design: A questionnaire based on the subscales of the Norwegian translation of the Abbreviated Profile of Hearing Aid Benefit was applied to a group of hearing aid users and normal-hearing controls., Study Sample: A total of 108 patients with bilateral hearing loss, and 101 controls with self-reported normal hearing., Data Collection and Analysis: The psychometric properties were evaluated. Associations and differences between outcome scores and descriptive variables were examined. A regression analysis was performed to investigate whether descriptive variables could predict outcome., Results: The measures of reliability suggest that the questionnaire has satisfactory psychometric properties, with the outcome of the questionnaire correlating to hearing loss severity, thus indicating that the concurrent validity of the questionnaire is good., Conclusions: The findings indicate that the proposed questionnaire is a valid measure of self-assessed communication ability in both quiet and adverse listening conditions in participants with and without hearing loss., (American Academy of Audiology)
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- 2018
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44. Molecular composition and distribution of gap junctions in the sensory epithelium of the human cochlea-a super-resolution structured illumination microscopy (SR-SIM) study.
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Liu W, Li H, Edin F, Brännström J, Glueckert R, Schrott-Fischer A, Molnar M, Pacholsky D, Pfaller K, and Rask-Andersen H
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- Adult, Connexins metabolism, Epithelium metabolism, Female, Gap Junctions ultrastructure, Humans, Immunohistochemistry, Male, Microscopy, Electron, Transmission, Middle Aged, Cochlea metabolism, Gap Junctions metabolism, Microscopy, Confocal methods
- Abstract
Background: Mutations in the GJB2 gene, which encodes the Connexin26 (Cx26) protein, are the most common cause of childhood hearing loss in American and European populations. The cochlea contains a gap junction (GJ) network in the sensory epithelium and two connective tissue networks in the lateral wall and spiral limbus. The syncytia contain the GJ proteins beta 2 (GJB2/Cx26) and beta 6 (GJB6/Cx30). Our knowledge of their expression in humans is insufficient due to the limited availability of tissue. Here, we sought to establish the molecular arrangement of GJs in the epithelial network of the human cochlea using surgically obtained samples., Methods: We analyzed Cx26 and Cx30 expression in GJ networks in well-preserved adult human auditory sensory epithelium using confocal, electron, and super-resolution structured illumination microscopy (SR-SIM)., Results: Cx30 plaques (<5 μm) dominated, while Cx26 plaques were subtle and appeared as 'mini-junctions' (2-300 nm). 3-D volume rendering of Z-stacks and orthogonal projections from single optical sections suggested that the GJs are homomeric/homotypic and consist of assemblies of identical GJs composed of either Cx26 or Cx30. Occasionally, the two protein types were co-expressed, suggesting functional cooperation., Conclusions: Establishing the molecular composition and distribution of the GJ networks in the human cochlea may increase our understanding of the pathophysiology of Cx-related hearing loss. This information may also assist in developing future strategies to treat genetic hearing loss.
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- 2017
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45. Psychotropic drug use and mortality in old people with dementia: investigating sex differences.
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Brännström J, Boström G, Rosendahl E, Nordström P, Littbrand H, Lövheim H, and Gustafson Y
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- Aged, 80 and over, Dementia drug therapy, Drug Utilization statistics & numerical data, Female, Humans, Kaplan-Meier Estimate, Male, Sex Characteristics, Antidepressive Agents therapeutic use, Antipsychotic Agents therapeutic use, Benzodiazepines therapeutic use, Dementia mortality
- Abstract
Background: Psychotropic drugs are common among old people with dementia, and have been associated with increased mortality. Previous studies have not investigated sex differences in this risk. This study was conducted to analyse associations between the use of antipsychotics, antidepressants, and benzodiazepines and 2-year mortality in old people with dementia, and to investigate sex differences therein., Methods: In total, 1037 participants (74% women; mean age, 89 years) with dementia were included from four cohort studies and followed for 2 years. Data were collected through home visits and medical records. Cox proportional hazard regression models were used to analyse associations between ongoing baseline drug use and mortality. Multiple possible confounders were evaluated and adjusted for., Results: In fully adjusted models including data from the whole population, no association between baseline psychotropic drug use and increased 2-year mortality was seen. Significant sex differences were found in mortality associated with antidepressant use, which was protective in men, but not in women (hazard ratio [HR] 0.61, 95% confidence interval [CI] 0.40-0.92 and HR 1.09, 95% CI 0.87-1.38, respectively). The interaction term for sex was significant in analyses of benzodiazepine use, with a higher mortality risk among men than among women., Conclusions: Among old people with dementia, ongoing psychotropic drug use at baseline was not associated with increased mortality in analyses adjusted for multiple confounders. Sex differences in mortality risk associated with antidepressant and benzodiazepine use were seen, highlighting the need for further investigation of the impact of sex.
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- 2017
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46. Symptomatic Patients without Epidemiological Indicators of HIV Have a High Risk of Missed Diagnosis: A Multi-Centre Cross Sectional Study.
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Brännström J, Svedhem V, Marrone G, Andersson Ö, Azimi F, Blaxhult A, and Sönnerborg A
- Subjects
- Acquired Immunodeficiency Syndrome diagnosis, Acquired Immunodeficiency Syndrome immunology, CD4 Lymphocyte Count, CD4-Positive T-Lymphocytes immunology, Cross-Sectional Studies, Demography, Health Facilities, Humans, Logistic Models, Multivariate Analysis, Risk Factors, Delayed Diagnosis, HIV Infections diagnosis, HIV Infections epidemiology
- Abstract
Objectives: One quarter of HIV-1 positive individuals in Sweden present for care with HIV or AIDS associated conditions without an HIV test (missed presentations) and 16% report neglect of such symptoms. The objective of this study was to identify risk factors for these missed opportunities of HIV-1 diagnosis., Methods: A national study, recruiting 409 newly diagnosed HIV-1 infected adults over a 2.5-year period, was performed. Logistic regression models tested the relationship between missed presentation and patient's neglect versus socio-demographic and behavioural risk factors. Additionally the initiator of the HIV test was assessed., Results: The odds for a missed presentation was lower for migrants (from East Europe, Asia, and Pacific (East): OR 0.4 (0.2-0.8); Sub-Saharan Africa (SSA): 0.3 (0.2-0.6); other: 0.5 (0.2-1.0)), compared to patients born in Sweden, just as symptoms neglected by the patient (East (0.3 (0.1-1.0); SSA (0.4 (0.2-0.8)). The latter was also lower for men who have sex with men (0.5 (0.2-1.0)), compared to patients infected heterosexually. Patients infected in the East, with present/previous substance use or a previous negative HIV test were more likely to take the initiative to test on their own, whereas those >50 years and with a previously missed presentation had significantly reduced odds, p<0.05., Conclusions: Individuals without epidemiological indicators of HIV are more likely to have a history of missed presentations, to neglect symptoms and are less prone to take an initiative to test for HIV themselves. It is important to further implement testing to include all patients with symptoms and conditions indicative of HIV., Competing Interests: AS has received grants for the study from the Swedish Board of Health and Welfare, Public Health Agency of Sweden and Gilead Science Nordic. JB received grants from Karolinska Institutet and Swedish Physicians against AIDS Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. JB had full access to the data and responsibility for the submission. For the remaining authors none were declared. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.
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- 2016
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47. Antidepressant use and mortality in very old people.
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Boström G, Hörnsten C, Brännström J, Conradsson M, Nordström P, Allard P, Gustafson Y, and Littbrand H
- Subjects
- Aged, 80 and over, Depression diagnosis, Depression epidemiology, Female, Frail Elderly statistics & numerical data, Geriatric Assessment, Humans, Male, Mortality, Patient Selection, Proportional Hazards Models, Psychiatric Status Rating Scales, Risk Factors, Sex Factors, Sweden epidemiology, Antidepressive Agents therapeutic use, Depression drug therapy
- Abstract
Background: Antidepressant treatment may increase the risk of death. The association between antidepressants and mortality has been evaluated in community-dwelling older people, but not in representative samples of very old people, among whom dementia, multimorbidity, and disability are common., Methods: Umeå 85+/GERDA study participants (n = 992) aged 85, 90, and ≥95 years were followed for up to five years. Cox proportional hazard regression models were used to analyze mortality risk associated with baseline antidepressant treatment, adjusted for potential confounders., Results: Mean age was 89 years; 27% of participants had dementia, 20% had stroke histories, 29% had heart failure, and 16% used antidepressants. In age- and sex-adjusted analyses, antidepressant use was associated with a 76% increased mortality risk (hazard ratio [HR] = 1.76; 95% confidence interval [CI], 1.41-2.19). Adding adjustment for Geriatric Depression Scale score, HR was 1.62 (95% CI, 1.29-2.03). The association was not significant when adjusting for additional confounding factors (HR = 1.08; 95% CI, 0.85-1.38). Interaction analyses in the fully adjusted model revealed a significant interaction between sex and antidepressant use (HR: 1.76; 95% CI, 1.05-2.94). Among male and female antidepressant users, the HRs for death were 0.76 (95% CI, 0.47-1.24) and 1.28 (95% CI, 0.97-1.70), respectively., Conclusion: Among very old people, baseline antidepressant treatment does not seem to be independently associated with increased mortality risk. However, the risk may be different in men and women. This difference and the potential risk of initial treatment require further investigation in future cohort studies of very old people.
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- 2016
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48. Functional-structural reorganisation of the neuronal network for auditory perception in subjects with unilateral hearing loss: Review of neuroimaging studies.
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Heggdal POL, Brännström J, Aarstad HJ, Vassbotn FS, and Specht K
- Subjects
- Acoustic Stimulation, Adaptation, Physiological, Brain physiopathology, Diffusion Tensor Imaging, Hearing Loss, Unilateral physiopathology, Hearing Loss, Unilateral psychology, Humans, Magnetic Resonance Imaging, Magnetic Resonance Spectroscopy, Nerve Net physiopathology, Predictive Value of Tests, Auditory Perception, Brain diagnostic imaging, Brain Mapping methods, Functional Neuroimaging, Hearing Loss, Unilateral diagnostic imaging, Nerve Net diagnostic imaging, Neuronal Plasticity
- Abstract
Objective: This paper aims to provide a review of studies using neuroimaging to measure functional-structural reorganisation of the neuronal network for auditory perception after unilateral hearing loss., Design: A literature search was performed in PubMed. Search criterions were peer reviewed original research papers in English completed by the 11th of March 2015., Study Sample: Twelve studies were found to use neuroimaging in subjects with unilateral hearing loss. An additional five papers not identified by the literature search were provided by a reviewer. Thus, a total of 17 studies were included in the review., Results: Four different neuroimaging methods were used in these studies: Functional magnetic resonance imaging (fMRI) (n = 11), diffusion tensor imaging (DTI) (n = 4), T1/T2 volumetric images (n = 2), magnetic resonance spectroscopy (MRS) (n = 1). One study utilized two imaging methods (fMRI and T1 volumetric images)., Conclusion: Neuroimaging techniques could provide valuable information regarding the effects of unilateral hearing loss on both auditory and non-auditory performance. fMRI-studies showing a bilateral BOLD-response in patients with unilateral hearing loss have not yet been followed by DTI studies confirming their microstructural correlates. In addition, the review shows that an auditory modality-specific deficit could affect multi-modal brain regions and their connections., (Copyright © 2015 Elsevier B.V. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
49. Development and psychometric testing of a barriers to HIV testing scale among individuals with HIV infection in Sweden; The Barriers to HIV testing scale-Karolinska version.
- Author
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Wiklander M, Brännström J, Svedhem V, and Eriksson LE
- Subjects
- Adolescent, Adult, Aged, Attitude to Health, Factor Analysis, Statistical, Female, Humans, Male, Middle Aged, Reproducibility of Results, Surveys and Questionnaires, Sweden, Young Adult, HIV Infections diagnosis, HIV Infections psychology, Mass Screening psychology, Psychometrics instrumentation
- Abstract
Background: Barriers to HIV testing experienced by individuals at risk for HIV can result in treatment delay and further transmission of the disease. Instruments to systematically measure barriers are scarce, but could contribute to improved strategies for HIV testing. Aims of this study were to develop and test a barriers to HIV testing scale in a Swedish context., Methods: An 18-item scale was developed, based on an existing scale with addition of six new items related to fear of the disease or negative consequences of being diagnosed as HIV-infected. Items were phrased as statements about potential barriers with a three-point response format representing not important, somewhat important, and very important. The scale was evaluated regarding missing values, floor and ceiling effects, exploratory factor analysis, and internal consistencies., Results: The questionnaire was completed by 292 adults recently diagnosed with HIV infection, of whom 7 were excluded (≥9 items missing) and 285 were included (≥12 items completed) in the analyses. The participants were 18-70 years old (mean 40.5, SD 11.5), 39 % were females and 77 % born outside Sweden. Routes of transmission were heterosexual transmission 63 %, male to male sex 20 %, intravenous drug use 5 %, blood product/transfusion 2 %, and unknown 9 %. All scale items had <3 % missing values. The data was feasible for factor analysis (KMO = 0.92) and a four-factor solution was chosen, based on level of explained common variance (58.64 %) and interpretability of factor structure. The factors were interpreted as; personal consequences, structural barriers, social and economic security, and confidentiality. Ratings on the minimum level (suggested barrier not important) were common, resulting in substantial floor effects on the scales. The scales were internally consistent (Cronbach's α 0.78-0.91)., Conclusions: This study gives preliminary evidence of the scale being feasible, reliable and valid to identify different types of barriers to HIV testing.
- Published
- 2015
- Full Text
- View/download PDF
50. Vascular repair utilising immobilised heparin conjugate for protection against early activation of inflammation and coagulation.
- Author
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Nordling S, Hong J, Fromell K, Edin F, Brännström J, Larsson R, Nilsson B, and Magnusson PU
- Subjects
- Anti-Inflammatory Agents metabolism, Anticoagulants metabolism, Antithrombin III metabolism, Blood Platelets drug effects, Blood Platelets metabolism, Cell Adhesion drug effects, Cell Hypoxia, Cell Movement drug effects, Cells, Cultured, Collagen metabolism, Heparin analogs & derivatives, Heparin metabolism, Human Umbilical Vein Endothelial Cells metabolism, Human Umbilical Vein Endothelial Cells pathology, Humans, Inflammation metabolism, Inflammation pathology, Neutrophils drug effects, Neutrophils metabolism, Peptide Hydrolases metabolism, Platelet Adhesiveness drug effects, Protein Binding, Reperfusion Injury metabolism, Reperfusion Injury pathology, Thrombosis metabolism, Thrombosis pathology, Time Factors, Anti-Inflammatory Agents pharmacology, Anticoagulants pharmacology, Blood Coagulation drug effects, Heparin pharmacology, Human Umbilical Vein Endothelial Cells drug effects, Inflammation drug therapy, Reperfusion Injury prevention & control, Thrombosis drug therapy
- Abstract
Ischaemia-reperfusion injury (IRI) poses a major challenge in many thrombotic conditions and in whole organ transplantation. Activation of the endothelial cells and shedding of the protective vascular glycocalyx during IRI increase the risk of innate immune activation, cell infiltration and severe thrombus formation, promoting damage to the tissue. Here, we present a novel one-step strategy to protect the vasculature by immobilisation of a unique multi-arm heparin conjugate to the endothelium. Applying a new in vitro blood endothelial cell chamber model, the heparin conjugate was found to bind not only to primary human endothelial cells but also directly to the collagen to which the cells adhered. Incubation of hypoxic endothelial cells with freshly drawn human blood in the blood chambers elicited coagulation activation reflected by thrombin anti-thrombin formation and binding of platelets and neutrophils. Immobilisation of the heparin conjugate to the hypoxic endothelial cells created a protective coating, leading to a significant reduction of the recruitment of blood cells and coagulation activation compared to untreated hypoxic endothelial cells. This novel approach of immobilising multi-arm heparin conjugates on the endothelial cells and collagen of the basement membrane ensures to protect the endothelium against IRI in thrombotic disorders and in transplantation.
- Published
- 2015
- Full Text
- View/download PDF
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