22 results on '"Ogaz D"'
Search Results
2. HIV testing in persons diagnosed with hepatitis B and C
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Ireland, G, Ogaz, D, Kirwan, P, Mandal, S, Delpech, V, Connor, N, and Simmons, R
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- 2018
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3. The role of frequent HIV testing in diagnosing HIV in men who have sex with men
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Furegato, M, Mitchell, H, Ogaz, D, Woodhall, S, Connor, N, Hughes, G, Nardone, A, and Mohammed, H
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- 2018
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4. Towards elimination of HIV transmission, AIDS and HIV-related deaths in the UK
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Brown, AE, primary, Nash, S, additional, Connor, N, additional, Kirwan, PD, additional, Ogaz, D, additional, Croxford, S, additional, De Angelis, D, additional, and Delpech, VC, additional
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- 2018
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5. The role of frequent HIV testing in diagnosing HIV in men who have sex with men
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Furegato, M, primary, Mitchell, H, additional, Ogaz, D, additional, Woodhall, S, additional, Connor, N, additional, Hughes, G, additional, Nardone, A, additional, and Mohammed, H, additional
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- 2017
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6. HIV testing in persons diagnosed with hepatitis B and C
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Ireland, G, primary, Ogaz, D, additional, Kirwan, P, additional, Mandal, S, additional, Delpech, V, additional, Connor, N, additional, and Simmons, R, additional
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- 2017
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7. Fall in new HIV diagnoses among men who have sex with men (MSM) at selected London sexual health clinics since early 2015: testing or treatment or pre-exposure prophylaxis (PrEP)?
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Brown, A. E., Mohammed, H., Ogaz, D., Kirwan, P. D., Yung, M., Nash, S. G., Furegato, M., Hughes, G., Connor, N., Delpech, V. C., and Gill, O. N.
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- 2017
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8. Undergraduate cancer training program for underrepresented students: findings from a minority institution/cancer center partnership.
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Coronado GD, O'Connell MA, Anderson J, Löest H, Ogaz D, Thompson B, Coronado, Gloria D, O'Connell, Mary A, Anderson, Jennifer, Löest, Helena, Ogaz, Dana, and Thompson, Beti
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Students from racially/ethnically diverse backgrounds are underrepresented in graduate programs in biomedical disciplines. One goal of the Minority Institution/Cancer Center partnership between New Mexico State University (NMSU) and the Fred Hutchinson Cancer Research Center (FHCRC) is to expand the number of underrepresented students who are trained in cancer research. As part of the collaboration, a summer internship program has been organized at the FHCRC. The program runs for 9 weeks and involves mentored research, research seminars, coffee breaks, social activities, and a final poster session. This study examined the graduate school attendance rates of past interns, explored interns' perceptions of the training program, and identified ways to improve the program. Thirty undergraduate students enrolled at NMSU participated in the internship program from 2002 to 2007 and telephone interviews were conducted on 22 (73%) of them. One-third of the students were currently in graduate school (32%); the remaining were either working (36%), still in undergraduate school (27%), or unemployed and not in school (5%). Students rated highly the following aspects of the program: mentored research, informal time spent with mentors, and research seminars. Students also reported the following activities would further enhance the program: instruction on writing a personal statement for graduate school and tips in choosing an advisor. Students also desired instruction on taking the GRE/MCAT, receiving advice on selecting a graduate or professional school, and receiving advice on where to apply. These findings can inform the design of internship programs aimed at increasing rates of graduate school attendance among underrepresented students. [ABSTRACT FROM AUTHOR]
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- 2010
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9. Knowledge, uptake and intention to use antibiotic post-exposure prophylaxis and meningococcal B vaccine (4CMenB) for gonorrhoea among a large, online community sample of men and gender-diverse individuals who have sex with men in the UK.
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Ogaz D, Edney J, Phillips D, Mullen D, Reid D, Wilkie R, Buitendam E, Bell J, Lowndes CM, Hughes G, Fifer H, Mercer CH, Saunders J, and Mohammed H
- Abstract
Novel STI prevention interventions, including doxycycline post-exposure prophylaxis (doxyPEP) and meningococcal B vaccination (4CMenB) against gonorrhoea, have been increasingly examined as tools to aid STI control. There is evidence of the efficacy of doxyPEP in preventing bacterial STIs; however, limited data exist on the extent of use in the UK. We examined self-reported knowledge and use of antibiotic post-exposure prophylaxis (PEP), and intention to use (ITU) doxyPEP and 4CMenB among a large, community sample of men and gender-diverse individuals who have sex with men in the UK. Using data collected by the RiiSH survey (November/December 2023), part of a series of online surveys of men and other gender-diverse individuals in the UK, we describe (%, [95% CI]) self-reported knowledge and use of antibiotic PEP (including doxyPEP) and doxyPEP and 4CMenB ITU. Using bivariate and multivariable logistic regression, we examined correlates of ever using antibiotic PEP, doxyPEP ITU, and 4CMenB ITU, respectively, adjusting for sociodemographic characteristics and a composite marker of sexual risk defined as reporting (in the last three months): ≥5 condomless anal sex partners, bacterial STI diagnosis, chemsex, and/or meeting partners at sex-on-premises venues, sex parties, or cruising locations. Of 1,106 participants (median age: 44 years [IQR: 34-54]), 34% (30%-37%) knew of antibiotic PEP; 8% (6%-10%) ever reported antibiotic PEP use. Among those who did, most reported use in the last year (84%, 73/87) and exclusively used doxycycline (69%, 60/87). Over half of participants reported doxyPEP ITU (51% [95% CI: 47%-56%], 568/1,106) while over two-thirds (64% [95% CI: 60%-69%], 713/1,106) reported 4CMenB ITU. Participants with markers of sexual risk and with uptake of other preventative interventions were more likely to report ever using antibiotic PEP as well as doxyPEP and 4CMenB ITU, respectively. HIV-PrEP users and people living with HIV (PLWHIV) were more likely to report antibiotic PEP use and doxyPEP and 4CMenB vaccination ITU than HIV-negative participants not reporting recent HIV-PrEP use. Findings demonstrate considerable interest in the use of novel STI prevention interventions, more so for 4CMenB vaccination relative to doxyPEP. Fewer than one in ten participants had reported ever using antibiotic PEP, with most using appropriate, evidence-based antibiotics. The use of antibiotic PEP and the report of doxyPEP ITU and 4CMenB ITU was more common among those at greater risk of STIs., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Ogaz et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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10. Mpox vaccination uptake in a UK community sample of gay, bisexual and other men who have sex with men (GBMSM) the year following the 2022 clade IIb mpox outbreak.
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Mullen D, Edney J, Phillips D, Wilkie R, Reid D, Lowndes CM, Buitendam E, Sinka K, Mandal S, Mercer CH, Saunders J, Mohammed H, and Ogaz D
- Abstract
Competing Interests: Competing interests: None declared.
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- 2024
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11. Factors associated with human papillomavirus, hepatitis A, hepatitis B and mpox vaccination uptake among gay, bisexual and other men who have sex with men in the UK- findings from the large community-based RiiSH-Mpox survey.
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Baldry G, Phillips D, Wilkie R, Checchi M, Folkard K, Simmons R, Saunders J, Mandal S, Mercer CH, Mohammed H, and Ogaz D
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- Humans, Male, Adult, United Kingdom epidemiology, Young Adult, Hepatitis A Vaccines administration & dosage, Middle Aged, Surveys and Questionnaires, Adolescent, Sexual Behavior statistics & numerical data, Patient Acceptance of Health Care statistics & numerical data, Bisexuality statistics & numerical data, Sexually Transmitted Diseases prevention & control, Human Papillomavirus Viruses, Mpox, Monkeypox, Homosexuality, Male statistics & numerical data, Vaccination statistics & numerical data, Hepatitis B prevention & control, Hepatitis A prevention & control, Hepatitis A epidemiology, Papillomavirus Vaccines administration & dosage, Papillomavirus Infections prevention & control, Sexual and Gender Minorities statistics & numerical data, Hepatitis B Vaccines administration & dosage
- Abstract
Background: Gay, bisexual, and other men who have sex with men (GBMSM) face a disproportionate burden of sexually transmitted infections and are eligible for targeted vaccinations for hepatitis A (HAV), hepatitis B (HBV), human papilloma virus (HPV) and mpox. This study examines the sociodemographic characteristics, sexual behaviours, and sexual healthcare service (SHS) use associated with vaccination uptake., Methods: We undertook analyses of RiiSH-Mpox - an online, community-based survey with GBMSM recruited via social media and dating apps. We calculated vaccination uptake (≥1 dose) among eligible GBMSM. Bivariate and multivariable logistic regression was performed to identify factors independently associated with vaccination uptake among eligible participants., Results: Reported uptake in eligible GBMSM was around two-thirds for each of the vaccinations considered: mpox 69% (95% confidence interval (CI): 66%-72%), HAV 68% (CI:65%-70%), HBV 72% (CI:69%-74%) and HPV 65% (CI:61%-68%). Vaccination course completion (receiving all recommended doses) ranged from 75% (HBV) to 89% (HAV) among eligible GBMSM. Individuals who represented missed opportunities for vaccination ranged from 22 to 30% of eligible SHS attendees. Younger participants, individuals identifying as bisexual, reporting lower educational qualifications, or being unemployed reported lower uptake across multiple GBMSM-selective vaccinations. Individuals who reported greater levels of sexual behaviour and recent SHS use were more likely to report vaccinations., Conclusion: Eligible participants reported high uptake of vaccinations; however, uptake was lower amongst young GBMSM and self-identifying bisexual men. Awareness of groups with lower vaccination uptake will help inform practice, delivery strategies and health promotion, to improve the reach and impact of vaccinations amongst GBMSM., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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12. Mpox Diagnosis, Behavioral Risk Modification, and Vaccination Uptake among Gay, Bisexual, and Other Men Who Have Sex with Men, United Kingdom, 2022.
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Ogaz D, Enayat Q, Brown JRG, Phillips D, Wilkie R, Jayes D, Reid D, Hughes G, Mercer CH, Saunders J, and Mohammed H
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- Humans, Male, United Kingdom epidemiology, Adult, Middle Aged, Young Adult, Sexual and Gender Minorities statistics & numerical data, Adolescent, Disease Outbreaks prevention & control, Risk Reduction Behavior, Surveys and Questionnaires, Bisexuality, Mpox, Monkeypox, Homosexuality, Male statistics & numerical data, Vaccination statistics & numerical data
- Abstract
During the 2022 multicountry mpox outbreak, the United Kingdom identified cases beginning in May. UK cases increased in June, peaked in July, then rapidly declined after September 2022. Public health responses included community-supported messaging and targeted mpox vaccination among eligible gay, bisexual, and other men who have sex with men (GBMSM). Using data from an online survey of GBMSM during November-December 2022, we examined self-reported mpox diagnoses, behavioral risk modification, and mpox vaccination offer and uptake. Among 1,333 participants, only 35 (2.6%) ever tested mpox-positive, but 707 (53%) reported behavior modification to avoid mpox. Among vaccine-eligible GBMSM, uptake was 69% (95% CI 65%-72%; 601/875) and was 92% (95% CI 89%-94%; 601/655) among those offered vaccine. GBMSM self-identifying as bisexual, reporting lower educational qualifications, or identifying as unemployed were less likely to be vaccinated. Equitable offer and provision of mpox vaccine are needed to minimize the risk for future outbreaks and mpox-related health inequalities.
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- 2024
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13. Sexual behaviour, STI and HIV testing and testing need among gay, bisexual and other men who have sex with men recruited for online surveys pre/post-COVID-19 restrictions in the UK.
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Brown JR, Reid D, Howarth AR, Mohammed H, Saunders J, Pulford CV, Ogaz D, Hughes G, and Mercer CH
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- Male, Humans, Homosexuality, Male, Sexual Behavior, Surveys and Questionnaires, HIV Testing, United Kingdom epidemiology, Sexual and Gender Minorities, HIV Infections diagnosis, HIV Infections epidemiology, HIV Infections prevention & control, COVID-19 diagnosis, COVID-19 epidemiology, COVID-19 prevention & control, Sexually Transmitted Diseases diagnosis, Sexually Transmitted Diseases epidemiology, Sexually Transmitted Diseases prevention & control, Pre-Exposure Prophylaxis
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Objectives: We examined sexual behaviour, sexually transmitted infection (STI) and HIV testing and testing need, and identified associated factors, among gay, bisexual and other men who have sex with men (GBMSM) in the UK after COVID-19 restrictions ended, and compared these with 'pre-pandemic' estimates., Methods: We analysed survey data from GBMSM (N=1039) recruited via social media and Grindr in November-December 2021. We then compared Grindr-recruited 2021 participants (N=437) with those from an equivalent survey fielded in March-May 2017 (N=1902). Questions on sexual behaviour and service use had lookback periods of 3-4 months in both surveys. Unmet testing need was defined as reporting any new male and/or multiple condomless anal sex (CAS) partners without recent STI/HIV testing. Participants were UK residents, GBMSM, aged ≥16 years who reported sex with men in the last year. Multivariable logistic regression identified associated sociodemographic and health-related factors with unmet STI/HIV testing need in 2021, and then for 2017/2021 comparative analyses, adjusting for demographic differences., Results: In 2021, unmet STI and HIV testing need were greater among older GBMSM (aged ≥45 years vs 16-29 years; adjusted OR (aOR): 1.45 and aOR: 1.77, respectively), and lower for pre-exposure prophylaxis (PrEP) users (vs non-PrEP users; aOR: 0.32 and aOR: 0.23, respectively). Less unmet STI testing need was observed among HIV-positive participants (vs HIV-negative/unknown; aOR: 0.63), and trans and non-binary participants (vs cisgender male; aOR: 0.34). Between 2017 (reference) and 2021, reported sexual risk behaviours increased: ≥1 recent new male sex partner (72.1%-81.1%, aOR: 1.71) and ≥2 recent CAS partners (30.2%-48.5%, aOR: 2.22). Reporting recent STI testing was greater in 2021 (37.5%-42.6%, aOR: 1.34) but not recent HIV testing, and there was no significant change over time in unmet STI (39.2% vs 43.7%) and HIV (32.9% vs 39.0%) testing need., Discussion: Comparable community surveys suggest that UK resident GBMSM may have engaged in more sexual risk behaviours in late 2021 than pre-pandemic. While there was no evidence of reduced STI/HIV service access during this time, there remained considerable unmet STI/HIV testing need., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY. Published by BMJ.)
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- 2023
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14. Difficulty accessing condoms because of the COVID-19 pandemic reported by gay, bisexual and other men who have sex with men in the UK: findings from a large, cross-sectional, online survey.
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Brown JR, Reid D, Howarth AR, Mohammed H, Saunders J, Pulford CV, Ogaz D, Hughes G, and Mercer CH
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- Humans, Male, Condoms, Cross-Sectional Studies, Homosexuality, Male, Pandemics prevention & control, Sexual Behavior, United Kingdom epidemiology, Female, Adolescent, Young Adult, Adult, Middle Aged, Aged, Aged, 80 and over, COVID-19 epidemiology, COVID-19 prevention & control, HIV Infections epidemiology, Sexual and Gender Minorities
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Background: COVID-19 restrictions severely reduced face-to-face sexual health services, an important access point for condoms. We examine whether gay, bisexual and other men who have sex with men (GBMSM) in the UK had difficulty accessing condoms during the first year of the pandemic, and if so, which groups were most affected., Methods: Questions about difficulty accessing condoms were asked as part of a short, online cross-sectional survey of GBMSM undertaken November/December 2021, recruited via social media and Grindr. Eligible participants were UK-resident GBMSM (cis/trans/gender-diverse person assigned male at birth [AMAB]), aged ≥16 years who were sexually active (reported sex with men in the last year). Multivariable logistic regression was used to examine if and how reporting this outcome varied by key sociodemographic, health and behavioural factors independent of the potential confounding effect of numbers of new male sex partners., Results: Of all participants ( N = 1039), 7.4% ( n = 77) reported difficulty accessing condoms due to the pandemic. This was higher among younger GBMSM (aged 16-29 years vs. ≥45; 12.8% vs. 4.9%; aOR: 2.78); trans/gender-diverse AMAB participants (vs. cis gender males; 24.4% vs. 6.6%; aOR = 4.86); bisexually-identifying participants (vs. gay-identifying; 11.1% vs. 6.5%; aOR = 1.78); and those without degree level education (vs. having a degree; 9.8% vs. 5.6%; aOR = 2.01)., Conclusions: A minority of sexually active GBMSM reported difficulty accessing condoms because of the pandemic, however, this was more common amongst those who already experience a disproportionate burden of poor sexual health. Interventions are needed to address these inequalities in accessing this important primary STI/HIV prevention measure.
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- 2023
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15. COVID-19 infection and vaccination uptake in men and gender-diverse people who have sex with men in the UK: analyses of a large, online community cross-sectional survey (RiiSH-COVID) undertaken November-December 2021.
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Ogaz D, Allen H, Reid D, Brown JRG, Howarth AR, Pulford CV, Mercer CH, Saunders J, Hughes G, and Mohammed H
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- Adult, Female, Humans, Male, COVID-19 Vaccines, Cross-Sectional Studies, England, Homosexuality, Male, Post-Acute COVID-19 Syndrome, SARS-CoV-2, Vaccination, Adolescent, Young Adult, COVID-19 epidemiology, COVID-19 prevention & control, Sexual and Gender Minorities
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Background: Men and gender-diverse people who have sex with men are disproportionately affected by health conditions associated with increased risk of severe illness due to COVID-19 infection., Methods: An online cross-sectional survey of men and gender-diverse people who have sex with men in the UK recruited via social networking and dating applications from 22 November-12 December 2021. Eligible participants included self-identifying men, transgender women, or gender-diverse individuals assigned male at birth (AMAB), aged ≥ 16, who were UK residents, and self-reported having had sex with an individual AMAB in the last year. We calculated self-reported COVID-19 test-positivity, proportion reporting long COVID, and COVID-19 vaccination uptake anytime from pandemic start to survey completion (November/December 2021). Logistic regression was used to assess sociodemographic, clinical, and behavioural characteristics associated with SARS-CoV-2 (COVID-19) test positivity and complete vaccination (≥ 2 vaccine doses)., Results: Among 1,039 participants (88.1% white, median age 41 years [interquartile range: 31-51]), 18.6% (95% CI: 16.3%-21.1%) reported COVID-19 test positivity, 8.3% (95% CI: 6.7%-10.1%) long COVID, and 94.5% (95% CI: 93.3%-96.1%) complete COVID-19 vaccination through late 2021. In multivariable models, COVID-19 test positivity was associated with UK country of residence (aOR: 2.22 [95% CI: 1.26-3.92], England vs outside England) and employment (aOR: 1.55 [95% CI: 1.01-2.38], current employment vs not employed). Complete COVID-19 vaccination was associated with age (aOR: 1.04 [95% CI: 1.01-1.06], per increasing year), gender (aOR: 0.26 [95% CI: 0.09-0.72], gender minority vs cisgender), education (aOR: 2.11 [95% CI: 1.12-3.98], degree-level or higher vs below degree-level), employment (aOR: 2.07 [95% CI: 1.08-3.94], current employment vs not employed), relationship status (aOR: 0.50 [95% CI: 0.25-1.00], single vs in a relationship), COVID-19 infection history (aOR: 0.47 [95% CI: 0.25-0.88], test positivity or self-perceived infection vs no history), known HPV vaccination (aOR: 3.32 [95% CI: 1.43-7.75]), and low self-worth (aOR: 0.29 [95% CI: 0.15-0.54])., Conclusions: In this community sample, COVID-19 vaccine uptake was high overall, though lower among younger age-groups, gender minorities, and those with poorer well-being. Efforts are needed to limit COVID-19 related exacerbation of health inequalities in groups who already experience a greater burden of poor health relative to other men who have sex with men., (© 2023. Crown.)
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- 2023
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16. HTLV seroprevalence in people using HIV pre-exposure prophylaxis in England.
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Bradshaw D, Khawar A, Patel P, Tosswill J, Brown C, Ogaz D, Mason E, Osman R, Mitchell H, Dosekun O, Peris BM, Pickard G, Rayment M, Jones R, Hopkins M, Williams A, Kingston M, Machin N, Taha Y, Duncan S, Turner N, Gill N, Andrews N, Raza M, Tazzyman S, Nori A, Cunningham E, and Taylor GP
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- Humans, Male, Seroepidemiologic Studies, England epidemiology, Homosexuality, Male, HIV Infections epidemiology, HIV Infections prevention & control, Pre-Exposure Prophylaxis, Sexually Transmitted Diseases
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Objectives: HTLV-1 is predominantly a sexually-transmitted infection but testing is not mentioned in HIV-PrEP guidelines. We ascertained HTLV-1/HTLV-2 seroprevalence amongst HIV-PrEP users in England., Methods: An unlinked anonymous seroprevalence study., Results: Amongst 2015 HIV-PrEP users, 95% were men, 76% of white ethnicity and 83% had been born in Europe. There were no HTLV-1/HTLV-2 seropositive cases (95% confidence interval 0% - 0.18%)., Conclusions: There were no HTLV positive cases, likely reflecting the demographic of mostly white and European-born individuals. Similar studies are needed worldwide to inform public health recommendations for HIV-PrEP using populations, particularly in HTLV-endemic settings., Competing Interests: Declaration of Competing Interest None, (Copyright © 2023. Published by Elsevier Ltd.)
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- 2023
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17. PrEP use and unmet PrEP-need among men who have sex with men in London prior to the implementation of a national PrEP programme, a cross-sectional study from June to August 2019.
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Ogaz D, Logan L, Curtis TJ, McDonagh L, Guerra L, Bradshaw D, Patel P, Macri C, Murphy G, Noel Gill O, Johnson AM, Nardone A, and Burns F
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- Adolescent, Adult, Cross-Sectional Studies, Homosexuality, Male, Humans, London epidemiology, Male, Sexual Behavior, Young Adult, HIV Infections epidemiology, HIV Infections prevention & control, Pre-Exposure Prophylaxis, Sexual and Gender Minorities
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Background: Access to prevention options, including HIV pre-exposure prophylaxis (PrEP), remains a public health priority for gay, bisexual, and other men who have sex with men (MSM), especially in London. We describe PrEP use in a London community sample of MSM before the introduction of a national PrEP programme in October 2020., Methods: From June-August 2019, MSM aged ≥ 18 recruited from London commercial venues were asked to self-complete a sexual health questionnaire and provide an oral fluid sample for anonymous HIV antibody testing. Descriptive analyses of demographic characteristics, service engagement and outcomes, as well as sexual risk and prevention behaviours were examined in the survey population and in those reporting current PrEP use. We performed sequential, multivariate analyses examining current PrEP use in MSM of self-perceived HIV-negative/unknown status with identified PrEP-need defined as the report of condomless anal sex (CAS) in the last three months, or the report of CAS (in the last year) with an HIV-positive/unknown status partner not known to be on HIV treatment, in reflection of UK PrEP guidelines., Results: One thousand five hundred and thirty-fifth questionnaires were completed across 34 venues, where 1408 were analysed. One in five MSM of self-perceived HIV-negative/unknown status reported current PrEP use (19.7%, 242/1230). In men with PrEP-need, 68.2% (431/632) did not report current use. Current PrEP use was associated with age (aOR: 3.52, 95% CI: 1.76-7.02 in men aged 40-44 vs men aged 18-25) and education (aOR: 1.72, 95% CI: 1.01-2.92 in men with ≥ 2 years/still full-time vs no/ < 2 years of education since age 16)., Conclusion: Among MSM in London, PrEP use is high but there is indication of unmet PrEP-need in men of younger age and lower levels of post-16 education. National programme monitoring and evaluation will require continued community monitoring to guide interventions ensuring equitable PrEP access and uptake in those who could most benefit from PrEP., (© 2022. The Author(s).)
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- 2022
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18. The success of HIV combination prevention: The Dean Street model.
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Girometti N, Delpech V, McCormack S, Khawam J, Nash S, Ogaz D, Mohammed H, Gedela K, Nugent D, Patel S, Suchak T, Tittle V, McOwan A, and Whitlock G
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- Bisexuality, Homosexuality, Male, Humans, Male, HIV Infections drug therapy, Pre-Exposure Prophylaxis methods, Sexual and Gender Minorities
- Abstract
The 56 Dean Street combination prevention model, a strong engagement with the LGBTQI community and flexible services adapted to users' changing needs led to an 80% drop in HIV diagnoses in gay, bisexual and other men who have sex with men (GBMSM) from 2015 to 2017. We describe the service changes at 56 Dean Street since 2012 which resulted in an increase in the frequency of HIV testing, the introduction of pre-exposure prophylaxis, earlier HIV diagnosis and a shorter time to viral suppression in those living with HIV. This model could be adapted to deliver similar results in those settings of high HIV prevalence among GBMSM and where access to technological innovation in healthcare and engagement with the community can be achieved., (© 2021 British HIV Association.)
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- 2021
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19. Tracking elimination of HIV transmission in men who have sex with men in England: a modelling study.
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Brizzi F, Birrell PJ, Kirwan P, Ogaz D, Brown AE, Delpech VC, Gill ON, and De Angelis D
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- Adolescent, Adult, Bayes Theorem, England epidemiology, HIV Infections epidemiology, HIV Infections prevention & control, Homosexuality, Male psychology, Humans, Incidence, Male, Middle Aged, Pre-Exposure Prophylaxis, Young Adult, HIV Infections transmission, Homosexuality, Male statistics & numerical data
- Abstract
Background: To manage the HIV epidemic among men who have sex with men (MSM) in England, treatment as prevention strategies based on test and treat were strengthened between 2011 and 2015, and supplemented from 2015 by scale-up of pre-exposure prophylaxis (PrEP). We examined the effect of these interventions on HIV incidence and investigated whether internationally agreed targets for HIV control and elimination of HIV transmission by 2030 might be within reach among MSM in England., Methods: We used a novel, age-stratified, CD4-staged Bayesian back-calculation model to estimate HIV incidence and undiagnosed infections among adult MSM (age ≥15 years) during the 10-year period between 2009 and 2018. The model used data on HIV and AIDS diagnoses routinely collected via the national HIV and AIDS Reporting System in England, and knowledge on the progression of HIV through CD4-defined disease stages. Estimated incidence trends were extrapolated, assuming a constant MSM population from 2018 onwards, to quantify the likelihood of achieving elimination of HIV transmission, defined as less than one newly aquired infection per 10 000 MSM per year, by 2030., Findings: The peak in HIV incidence in MSM in England was estimated with 80% certainty to have occurred in 2012 or 2013, at least 1 year before the observed peak in new diagnoses in 2014. Results indicated a steep decrease in the annual number of new infections among MSM, from 2770 (95% credible interval 2490-3040) in 2013 to 1740 (1500-2010) in 2015, followed by a steadier decrease from 2016, down to 854 (441-1540) infections in 2018. A decline in new infections was consistently estimated in all age groups, and was particularly marked in MSM aged 25-34 years, and slowest in those aged 45 years or older. Similar trends were estimated in the number of undiagnosed infections, with the greatest decrease after 2013 in the 25-34 years age group. Under extrapolation assumptions, we calculated a 40% probability of achieving the defined target elimination threshold by 2030., Interpretation: The sharp decrease in HIV incidence, estimated to have begun before the scale up of PrEP, indicates the success of strengthening treatment as prevention measures among MSM in England. To achieve the 2030 elimination threshold, targeted policies might be required to reach those aged 45 years or older, in whom incidence is decreasing at the slowest rate., Funding: UK Medical Research Council, UK National Institute of Health Research Health Protection Unit in Behavioural Science and Evaluation, and Public Health England., Competing Interests: Declaration of interests We declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
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- 2021
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20. Response to: Fitzpatrick C, Lowe M, Richardson D. Sexually transmitted infection testing and rates in men who have sex with men (MSM) using HIV pre-exposure prophylaxis. HIV Medicine 2019; https://doi.org/10.1111/hiv.12736 (published Online First: 16 March 2019).
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Saunders J, Mohammed H, Daskalopoulou M, Ogaz D, Gill ON, and Sullivan A
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- Homosexuality, Male, Humans, Male, HIV Infections, Pre-Exposure Prophylaxis, Sexual and Gender Minorities, Sexually Transmitted Diseases
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- 2019
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21. 100 years of STIs in the UK: a review of national surveillance data.
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Mohammed H, Blomquist P, Ogaz D, Duffell S, Furegato M, Checchi M, Irvine N, Wallace LA, Thomas DR, Nardone A, Dunbar JK, and Hughes G
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- Chlamydia Infections diagnosis, Chlamydia Infections epidemiology, Condylomata Acuminata diagnosis, Condylomata Acuminata epidemiology, Epidemics statistics & numerical data, Female, Gonorrhea epidemiology, HIV Infections epidemiology, History, 20th Century, History, 21st Century, Homosexuality, Male, Humans, Male, Public Health history, Sexual Behavior, Sexual and Gender Minorities, Sexually Transmitted Diseases diagnosis, Syphilis epidemiology, United Kingdom epidemiology, Epidemiological Monitoring, Public Health trends, Sexually Transmitted Diseases epidemiology, Sexually Transmitted Diseases history
- Abstract
Objectives: The 1916 Royal Commission on Venereal Diseases was established in response to epidemics of syphilis and gonorrhoea in the UK. In the 100 years since the Venereal Diseases Act (1917), the UK has experienced substantial scientific, economic and demographic changes. We describe historical and recent trends in STIs in the UK., Methods: We analysed surveillance data derived from STI clinics' statistical returns from 1917 to 2016., Results: Since 1918, gonorrhoea and syphilis diagnoses have fluctuated, reflecting social, economic and technological trends. Following spikes after World Wars I and II, rates declined before re-emerging during the 1960s. At that time, syphilis was more common in men, suggestive of transmission within the men who have sex with men (MSM) population. Behaviour change following the emergence of HIV/AIDS in the 1980s is thought to have facilitated a precipitous decline in diagnoses of both STIs in the mid-1980s. Since the early 2000s, gonorrhoea and syphilis have re-emerged as major public health concerns due to increased transmission among MSM and the spread of antimicrobial-resistant gonorrhoea. Chlamydia and genital warts are now the most commonly diagnosed STIs in the UK and have been the focus of public health interventions, including the national human papillomavirus vaccination programme, which has led to substantial declines in genital warts in young people, and the National Chlamydia Screening Programme in England. Since the 1980s, MSM, black ethnic minorities and young people have experienced the highest STI rates., Conclusion: Although diagnoses have fluctuated over the last century, STIs continue to be an important public health concern, often affecting more marginalised groups in society. Prevention must remain a public health priority and, as we enter a new era of sexual healthcare provision including online services, priority must be placed on maintaining prompt access for those at greatest risk of STIs., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)
- Published
- 2018
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22. Fall in new HIV diagnoses among men who have sex with men (MSM) at selected London sexual health clinics since early 2015: testing or treatment or pre-exposure prophylaxis (PrEP)?
- Author
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Brown AE, Mohammed H, Ogaz D, Kirwan PD, Yung M, Nash SG, Furegato M, Hughes G, Connor N, Delpech VC, and Gill ON
- Subjects
- Anti-HIV Agents therapeutic use, HIV Infections drug therapy, Humans, London, Male, Population Surveillance, Sexual Behavior, Sexual Health, Sexual Partners, HIV Infections diagnosis, HIV Infections prevention & control, Homosexuality, Male statistics & numerical data, Mass Screening trends, Pre-Exposure Prophylaxis
- Abstract
Since October 2015 up to September 2016, HIV diagnoses fell by 32% compared with October 2014-September 2015 among men who have sex with men (MSM) attending selected London sexual health clinics. This coincided with high HIV testing volumes and rapid initiation of treatment on diagnosis. The fall was most apparent in new HIV testers. Intensified testing of high-risk populations, combined with immediately received anti-retroviral therapy and a pre-exposure prophylaxis (PrEP) programme, may make elimination of HIV achievable., (This article is copyright of The Authors, 2017.)
- Published
- 2017
- Full Text
- View/download PDF
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