7 results on '"Victoria Iyun"'
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2. Provider‐ and patient‐level costs associated with providing antiretroviral therapy during the postpartum phase to women living with HIV in South Africa: A cost comparison of three postpartum models of care
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Caitlin M Dugdale, Kim MacQuilkan, Victoria Iyun, Lucy Cunnama, Tamsin K Phillips, Andrea L. Ciaranello, Landon Myer, Allison Zerbe, Elaine J. Abrams, Vanessa Daries, and Edina Sinanovic
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Adult ,retention ,medicine.medical_specialty ,Maternal-Child Health Services ,Referral ,Total cost ,antiretroviral therapy ,030231 tropical medicine ,Human immunodeficiency virus (HIV) ,Breastfeeding ,HIV Infections ,prevention of mother‐to‐child transmission of HIV ,medicine.disease_cause ,Phase (combat) ,Unit (housing) ,South Africa ,03 medical and health sciences ,0302 clinical medicine ,Sub‐Saharan Africa ,cost analysis ,Pregnancy ,medicine ,low/middle‐income country ,Humans ,Pregnancy Complications, Infectious ,health care economics and organizations ,Cost database ,business.industry ,Postpartum Period ,Public Health, Environmental and Occupational Health ,Infant ,Antiretroviral therapy ,Infectious Disease Transmission, Vertical ,Breast Feeding ,Models, Economic ,Infectious Diseases ,Anti-Retroviral Agents ,Family medicine ,Infant Care ,Costs and Cost Analysis ,Original Article ,Female ,Parasitology ,business ,Original Research Papers ,postpartum care - Abstract
To compare the unit and total costs of three models of ART care for mother-infant pairs during the postpartum phase from provider and patient's perspectives: (i) local standard of care with women in general ART services and infants at well-baby clinics; (ii) women and infants continue to receive care through an integrated maternal and child care approach during the postpartum breastfeeding period; and (iii) referral of women directly to community adherence clubs with their infants receiving care at well-baby clinics.Capital and recurrent cost data (relating to buildings, furniture, equipment, personnel, overheads, maintenance, medication, diagnostic tests and immunisations) were collected from a provider's perspective at six sites in Cape Town, South Africa. Patient time, collected via time-and-motion observation and questionnaires, was used to estimate patient perspective costs and is comprised of lost productivity time, time spent travelling and the direct cost of travelling.The cost of postpartum ART visits under models I, II and III was US $13, US $10 and US $7 per visit for a mother-infant pair, respectively, in 2018 US$. The annual costs for the mother-infant pair utilising the average visit frequencies (a mean of 4.5, 6.9 and 6.7 visits postpartum for models I, II and III, respectively) including costs for infant immunisations, visits, medication and diagnostic tests for both mothers and infants were: I - US $222, II - US $335 and III - US $249. Sensitivity analysis to assess the impact of visit frequency on visit cost showed that Model I annual costs would be most costly if visit frequency was equalised.This comparative analysis of three models of care provides novel data on unit costs and insight into the costs to provide ART and care to mother-infant pairs during the delicate postpartum phase. These costs may be used to help make decisions around integrated services models and differentiated service delivery for postpartum WLH and their children.Comparer le coût et unitaire et total de trois modèles de soins ART pour les paires mère-enfant pendant la phase post-partum selon les perspectives du fournisseur et du patient: (I) - normes locales des soins avec les femmes dans les services généraux de l'ART et les nourrissons dans les cliniques de bien-être pour bébés; (II) - les femmes et les nourrissons continuent de recevoir des soins via une approche intégrée de soins maternels et infantiles pendant la période d'allaitement post-partum; et (III) - orientation des femmes directement vers les clubs d'adhésion communautaires, leurs nourrissons recevant des soins dans les cliniques de bien-être pour bébés pour bébés. MÉTHODES: Les données sur les coûts d'investissement et les coûts récurrents (relatifs aux bâtiments, au mobilier, à l'équipement, au personnel, aux frais généraux, à l'entretien, aux médicaments, aux tests de diagnostic et aux vaccinations) ont été recueillies selon le point de vue du prestataire sur six sites à Cape Town, en Afrique du Sud. Le temps du patient, recueilli via l'observation du temps et des mouvements et des questionnaires, a été utilisé pour estimer les coûts selon le point de vue du patient, et comprend le temps de productivité perdu, le temps passé en déplacement et le coût direct du déplacement. RÉSULTATS: Le coût des visites ART post-partum dans les modèles I, II et III était respectivement de 13 USD, 10 USD et 7 USD par visite pour une paire mère-enfant en USD de 2018. Les coûts annuels pour la paire mère-enfant en utilisant la fréquence moyenne des visites (une moyenne de 4,5 ; 6,9 et 6,7 visites post-partum pour les modèles I, II et III respectivement), y compris les coûts des vaccinations infantiles, des visites, des médicaments et des tests diagnostiques pour les mères et les nourrissons étaient: I - 222 USD, II - 335 USD et III - 249 USD. L'analyse de sensibilité pour évaluer l'impact de la fréquence des visites sur le coût des visites a montré que les coûts annuels du modèle I seraient les plus élevés si la fréquence des visites était égalisée.Cette analyse comparative de trois modèles de soins fournit de nouvelles données sur les coûts unitaires et un aperçu des coûts de fourniture de l’ART et de soins aux paires mère-enfant pendant la phase délicate du post-partum. Ces coûts peuvent être utilisés pour aider à la prise des décisions concernant les modèles de services intégrés et la prestation de services différenciés pour les femmes en période de post-partum et leurs enfants.
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- 2020
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3. Variations in the characteristics and outcomes of children living with HIV following universal ART in sub-Saharan Africa (2006-17): a retrospective cohort study
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Mary-Ann Davies, Victoria Iyun, Andrew Edmonds, Marcel Yotebieng, Lisa Abuogi, Karl-Günter Technau, Rachel Vreeman, Sophie Desmonde, Madeleine Amorissani-Folquet, and Michael J. Vinikoor
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0301 basic medicine ,Male ,Sub saharan ,Epidemiology ,Anti-HIV Agents ,Immunology ,Human immunodeficiency virus (HIV) ,HIV Infections ,Institutional ethics ,medicine.disease_cause ,Article ,03 medical and health sciences ,0302 clinical medicine ,Africa, Northern ,Virology ,medicine ,Humans ,In patient ,030212 general & internal medicine ,Child ,Poverty ,Proportional Hazards Models ,Retrospective Studies ,Proportional hazards model ,business.industry ,Hazard ratio ,Infant ,Retrospective cohort study ,030112 virology ,Antiretroviral therapy ,Infectious Diseases ,Treatment Outcome ,Child, Preschool ,Income ,business ,Demography - Abstract
Summary Background The proportion of children living with HIV and receiving antiretroviral therapy (ART) in sub-Saharan Africa has increased greatly since 2006, yet the changes in their demographic characteristics and treatment outcomes have not been well described. We examine the trends in characteristics and outcomes of children living with HIV who were younger than 5 years at ART initiation, and compare outcomes over time and across country income groups. Methods We conducted a retrospective cohort analysis of data from children living with HIV who were younger than 5 years at ART initiation from 45 paediatric sites in 16 low-income, lower-middle-income, and upper-middle-income countries in sub-Saharan Africa (Benin, Burundi, Cote d'Ivoire, Democratic Republic of the Congo, Ghana, Kenya, Lesotho, Malawi, Mali, Mozambique, Rwanda, South Africa, Togo, Uganda, Zambia, and Zimbabwe). Outcomes were trends in patient characteristics at ART initiation (age, weight, height, and CD4%), and comparisons of mortality and loss to follow-up during ART over time and in various economic settings. We identified risk factors for mortality using Cox proportional hazards models. Each participating region had relevant institutional ethics review board approvals to contribute data to the analysis. Findings We included 32 221 children living with HIV and initiating ART younger than 5 years between Jan 1, 2006, and Dec 31, 2017. Median age at ART initiation was 20·4 months (IQR 9·4–36·0) in 2006–10, 19·2 months (8·3–33·6) in 2011–13, and 19·2 months (8·8–33·7) in 2014–17. Median age at ART initiation was 13·2 months (IQR 4·7–26·8) in upper-middle-income countries, 22·6 months (13·2–37·5) in lower-middle-income countries and 24·2 months (13·5–39·1) in low-income countries. The proportion of children initiating ART younger than 3 months increased from 770 (5·1%) of 14 943 children in 2006–10 to 728 (10·0%) of 7290 children in 2014–17. The proportion of children initiating ART with severe immunosuppression decreased from 5469 (74·7%) of 7314 children for whom CD4% data were available in 2006–10 to 2353 (55·2%) of 4269 children in 2014–17. Mortality at 24 months on ART decreased from 970 (6·5%) of 14 943 children in 2006–10 to 214 (2·9%) of 7290 children in 2014–17. Loss to follow-up was 20·5% (95% CI 20·1–21·0) overall, and was similar across time periods. In multivariable analysis, lower mortality was observed for more recent ART initiation cohorts (adjusted hazard ratio 0·70, 95% CI 0·63–0·79 for 2011–13; 0·53, 0·45–0·72 for 2014–17 vs 2006–10) and for those residing in an upper-middle-income country (0·42, 0·35–0·49 vs low-income countries). Interpretation Mortality declined significantly after universal ART recommendations for children younger than 2 years in 2010 and children younger than 5 years in 2013. However, substantial variations persisted across country income groups, and one in five children continue to be lost to follow-up. Targeted interventions are required to improve outcomes of children living with HIV, especially in the poorest countries. Funding National Institute of Allergy and Infectious Disease.
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- 2020
4. Earlier Antiretroviral Therapy Initiation and Decreasing Mortality Among HIV-infected Infants Initiating Antiretroviral Therapy Within 3 Months of Age in South Africa, 2006-2017
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Matthias Egger, Andrew Boulle, Frank Tanser, Victoria Iyun, Karl-Günter Technau, Helena Rabie, Geoffrey Fatti, Lee Fairlie, M F Cotton, Mary-Ann Davies, Robin Wood, and Brian Eley
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Microbiology (medical) ,Male ,Pediatrics ,medicine.medical_specialty ,Anti-HIV Agents ,Psychological intervention ,HIV Infections ,Africa, Southern ,Article ,Time-to-Treatment ,03 medical and health sciences ,0302 clinical medicine ,Interquartile range ,030225 pediatrics ,Antiretroviral Therapy, Highly Active ,medicine ,Risk of mortality ,Humans ,030212 general & internal medicine ,Mortality ,Proportional Hazards Models ,Proportional hazards model ,business.industry ,Incidence (epidemiology) ,Incidence ,Infant, Newborn ,Infant ,Viral Load ,Confidence interval ,CD4 Lymphocyte Count ,Infectious Diseases ,Treatment Outcome ,Expanded access ,Pediatrics, Perinatology and Child Health ,Female ,business ,Viral load - Abstract
Background: Early infant diagnosis of HIV and antiretroviral therapy (ART) has been rapidly scaled-up. We aimed to examine the effect of expanded access to early ART on the characteristics and outcomes of infants initiating ART. Methods: From 9 cohorts within the International epidemiologic Databases to Evaluate AIDS-Southern Africa collaboration, we included infants with HIV initiating ART ≤3 months of age between 2006 and 2017. We described ART initiation characteristics and the probability of mortality, loss to follow-up (LTFU) and transfer out after 6 months on ART and assessed factors associated with mortality and LTFU. Results: A total of 1847 infants started ART at a median age of 60 days [interquartile range: 29–77] and CD4 percentage (%) of 27% (18%–38%). Across ART initiation calendar periods 2006–2009 to 2013–2017, ART initiation age decreased from 68 (53–81) to 45 days (7–71) (P < 0.001), median CD4% improved from 22% (15%–34%) to 32% (22–43) (P < 0.001) and the proportion with World Health Organization clinical disease stage 3 or 4 declined from 81.6% to 32.7% (P < 0.001). Overall, the 6-month mortality probability was 5.0% and LTFU was 20.4%. Mortality was 10.6% (95% confidence interval: 7.8%–14.4%) in 2006–2009 and 4.6% (3.1%–6.7%) in 2013–2017 (P < 0.001), with similar LTFU across calendar periods (P = 0.274). Pretreatment weight-for-age Z score
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- 2019
5. Experiences of HIV-positive postpartum women and health workers involved with community-based antiretroviral therapy adherence clubs in Cape Town, South Africa
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Tamsin K Phillips, Landon Myer, Allison Zerbe, Christopher J. Colvin, Zara Trafford, Elaine J. Abrams, Yolanda Gomba, Kirsty Brittain, Victoria Iyun, Division of Public Health, and Faculty of Health Sciences
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Adult ,Postpartum women ,0301 basic medicine ,Postnatal Care ,medicine.medical_specialty ,Referral ,Anti-HIV Agents ,Health Personnel ,Differentiated care ,Breastfeeding ,HIV Infections ,Pilot Projects ,Health workers ,Adherence clubs ,Medication Adherence ,Cohort Studies ,South Africa ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Epidemiology ,medicine ,Humans ,030212 general & internal medicine ,Qualitative Research ,reproductive and urinary physiology ,business.industry ,lcsh:Public aspects of medicine ,Public health ,Postpartum Period ,Public Health, Environmental and Occupational Health ,HIV ,Prenatal Care ,lcsh:RA1-1270 ,030112 virology ,Antiretroviral therapy ,3. Good health ,Breast Feeding ,Family medicine ,Feasibility Studies ,Female ,Club ,Biostatistics ,business ,Inclusion (education) ,Research Article ,Program Evaluation - Abstract
Background The rollout of universal, lifelong treatment for all HIV-positive pregnant and breastfeeding women (“Option B+”) has rapidly increased the number of women initiating antiretroviral treatment (ART) and requiring ART care postpartum. In a pilot project in South Africa, eligible postpartum women were offered the choice of referral to the standard of care, a local primary health care clinic, or a community-based model of differentiated ART services, the adherence club (AC). ACs have typically enrolled only non-pregnant and non-postpartum adults; postpartum women had not previously been referred directly from antenatal care. There is little evidence regarding postpartum women’s preferences for and experiences of differentiated models of care, or the capacity of this particular model to cater to their specific needs. This qualitative paper reports on feedback from both postpartum women and health workers who care for them on their respective experiences of the AC. Methods One-on-one in-depth qualitative interviews were conducted with 19 (23%) of the 84 postpartum women who selected the AC and were retained at approximately 12 months postpartum, and 9 health workers who staff the AC. Data were transcribed and thematically analysed using NVivo 11. Results Postpartum women’s inclusion in the AC was acceptable for both participants and health workers. Health workers were welcoming of postpartum women but expressed concerns about prospects for longer term adherence and retention, and raised logistical issues they felt might compromise trust with AC members in general. Conclusions Enrolling postpartum women in mixed groups with the general adult population is feasible and acceptable. Preliminary recommendations are offered and may assist in supporting the specific needs of postpartum women transitioning from antenatal ART care. Trial registration Number NCT02417675 clinicaltrials.gov/ct2/show/record/NCT02417675 (retrospective reg.)
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- 2018
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6. Prevalence and determinants of unplanned pregnancy in HIV-positive and HIV-negative pregnant women in Cape Town, South Africa: a cross-sectional study
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Kirsty Brittain, Victoria Iyun, Elaine J. Abrams, James McIntyre, Greg Petro, Allison Zerbe, Landon Myer, Stanzi M le Roux, and Tamsin K Phillips
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Adult ,Adolescent ,Cross-sectional study ,unplanned pregnancy ,Human immunodeficiency virus (HIV) ,family planning ,HIV Infections ,medicine.disease_cause ,South Africa ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Cape ,Unplanned pregnancy ,Prevalence ,medicine ,Humans ,030212 general & internal medicine ,Pregnancy Complications, Infectious ,Young adult ,030219 obstetrics & reproductive medicine ,business.industry ,Research ,Pregnancy, Unplanned ,HIV ,virus diseases ,General Medicine ,medicine.disease ,Antiretroviral therapy ,3. Good health ,Cross-Sectional Studies ,contraception ,Family planning ,Female ,Public Health ,women ,business ,Demography - Abstract
Objectives Prevention of unplanned pregnancy is a crucial aspect of preventing mother-to-child HIV transmission. There are few data investigating how HIV status and use of antiretroviral therapy (ART) may influence pregnancy planning in high HIV burden settings. Our objective was to examine the prevalence and determinants of unplanned pregnancy among HIV-positive and HIV-negative women in Cape Town, South Africa. Design Cross-sectional analysis. Settings Single primary-level antenatal care clinic in Cape Town, South Africa. Participants HIV-positive and HIV-negative pregnant women, booking for antenatal care from March 2013 to August 2015, were included. Main outcome measures Unplanned pregnancy was measured at the first antenatal care visit using the London Measure of Unplanned Pregnancy (LMUP). Analyses examined LMUP scores across four groups of participants defined by their HIV status, awareness of their HIV status prior to the current pregnancy and/or whether they were using antiretroviral therapy (ART) prior to the current pregnancy. Results Among 2105 pregnant women (1512 HIV positive; 593 HIV negative), median age was 28 years, 43% were married/cohabiting and 20% were nulliparous. Levels of unplanned pregnancy were significantly higher in HIV-positive versus HIV-negative women (50% vs 33%, p
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- 2018
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7. Differentiated models of care for postpartum women on antiretroviral therapy in Cape Town, South Africa: a cohort study
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Kirsty Brittain, Landon Myer, Tamsin K Phillips, Elton Mukonda, Victoria Iyun, Joanna Allerton, Andile Nofemela, Elaine J. Abrams, Cathy D. Kalombo, and Allison Zerbe
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Adult ,0301 basic medicine ,Postnatal Care ,Pediatrics ,medicine.medical_specialty ,Referral ,Anti-HIV Agents ,Service delivery framework ,antiretroviral therapy ,Population ,HIV Infections ,Pilot Projects ,Cohort Studies ,South Africa ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Acquired immunodeficiency syndrome (AIDS) ,Pregnancy ,medicine ,postnatal care ,Humans ,030212 general & internal medicine ,adherence club ,Pregnancy Complications, Infectious ,education ,education.field_of_study ,Primary Health Care ,business.industry ,Postpartum Period ,Public Health, Environmental and Occupational Health ,HIV ,maternal and child health ,Viral Load ,medicine.disease ,030112 virology ,3. Good health ,Infectious Diseases ,Family medicine ,Female ,Other ,business ,Postpartum period ,Research Article ,Cohort study - Abstract
Background : The numbers of women initiating lifelong antiretroviral therapy (ART) during pregnancy and postpartum is increasing rapidly, presenting a burden on health systems and an urgent need for scalable models of care for this population. In a pilot project, we referred postpartum women who initiated ART during pregnancy to a community-based model of differentiated ART services. Methods : Eligible women (on ART for at least 3 months with viral load (VL)
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- 2017
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