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Nattabi J, Bahar OS, Nabayinda J, Nabunya P, Kiyingi J, Kizito S, Namuwonge F, Nsubuga E, Witte SS, Ssewamala FM. Crossroads of Choice: A qualitative study of the factors influencing decisions to transition from sex work among women engaged in sex work in Southern Uganda. RESEARCH SQUARE 2024:rs.3.rs-4468785. [PMID: 38883774 PMCID: PMC11177997 DOI: 10.21203/rs.3.rs-4468785/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Background Women Engaged in commercial Sex Work (WESW) are exposed to behavioral, biological, and structural factors that exacerbate their risk to HIV infection and other sexually transmitted infections. While commercial sex work may appear voluntary, WESW are more likely to be constrained to selling sex due to limited viable alternatives. To effectively support this vulnerable group of women, it is critical to understand factors that facilitate and impede their decisions to transition from sex work into other careers or jobs. The current study explored women's decision to transition from sex work into other careers or jobs. Methods Semi-structured in-depth interviews were conducted with 53 WESW aged 20-47 enrolled within a larger study-Kyaterekera study, a randomized clinical trial (N = 542) implemented in 19 HIV hotspots in the Southern region of Uganda. Participants were selected based on their intervention attendance (high/medium/low attendance). The interviews were conducted in Luganda the widely spoken language in the study area to explore the factors influencing women's decisions to from transition from sex work to other jobs or careers. The main interview question used for this study was, "What are some of the factors that may influence whether you would transition from sex work to other jobs or vocations?". All interviews were audio-recorded, transcribed verbatim and translated into English. Thematic analysis in Dedoose software was used to analyze the data. Results Participants reported three primary types of decisions, including considering leaving sex work, deciding to leave, and continuing sex work. The emerging themes from the interviews were categorized into individual and structural level facilitators and barriers to leave sex work. Individual level factors included issues of stigma, discrimination, and aging as factors that facilitated women's decision to leave sex work. At the structural level, factors which include interpersonal stigma and discrimination (from immediate family and community members), physical and sexual violence and income related factors were identified as facilitators and barriers to leaving sex work. Conclusion Our study highlights the complex decision-making processes among WESW as they navigate transitions to alternative jobs or careers. By advocating for multifaceted interventions and policies tailored to the diverse challenges faced by WESW, our study contributes to a more informed approach to supporting their transition out of sex work.
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Anderegg N, Slabbert M, Buthelezi K, Johnson LF. Increasing age and duration of sex work among female sex workers in South Africa and implications for HIV incidence estimation: Bayesian evidence synthesis and simulation exercise. Infect Dis Model 2024; 9:263-277. [PMID: 38323073 PMCID: PMC10844672 DOI: 10.1016/j.idm.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/20/2023] [Accepted: 01/17/2024] [Indexed: 02/08/2024] Open
Abstract
Introduction In sub-Saharan Africa, accurate estimates of the HIV epidemic in female sex workers are crucial for effective prevention and care strategies. These estimates are typically derived from mathematical models that assume certain demographic and behavioural characteristics like age and duration of sex work to remain constant over time. We reviewed this assumption for female sex workers in South Africa. Methods We reviewed studies that reported estimates on either the age or the duration of sex work among female sex workers in South Africa. We used Bayesian hierarchical models to synthesize reported estimates and to study time trends. In a simulation exercise, we also investigated the potential impact of the "constant age and sex work duration"-assumption on estimates of HIV incidence. Results We included 24 different studies, conducted between 1996 and 2019, contributing 42 estimates on female sex worker age and 27 estimates on sex work duration. There was evidence suggesting an increase in both the duration of sex work and the age of female sex workers over time. According to the fitted models, over each decade the expected duration of sex work increased by 55.6% (95%-credible interval [CrI]: 23.5%-93.9%) and the expected age of female sex workers increased by 14.3% (95%-CrI: 9.1%-19.1%). Over the 23-year period, the predicted mean duration of sex work increased from 2.7 years in 1996 to 7.4 years in 2019, while the predicted mean age increased from 26.4 years to 32.3 years. Allowing for these time trends in the simulation exercise resulted in a notable decline in estimated HIV incidence rate among sex workers over time. This decline was significantly more pronounced than when assuming a constant age and duration of sex work. Conclusions In South Africa, age and duration of sex work in female sex workers increased over time. While this trend might be influenced by factors like expanding community mobilization and improved rights advocacy, the ongoing criminalisation, stigmatisation of sex work and lack of alternative employment opportunities could also be contributing. It is important to account for these changes when estimating HIV indicators in female sex workers.
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Affiliation(s)
- Nanina Anderegg
- Centre for Infectious Disease Epidemiology and Research, School of Public Health, University of Cape Town, South Africa
- Institute of Social and Preventive Medicine, University of Bern, Switzerland
| | | | | | - Leigh F. Johnson
- Centre for Infectious Disease Epidemiology and Research, School of Public Health, University of Cape Town, South Africa
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Kiyingi J, Nabunya P, Kizito S, Nabayinda J, Nsubuga E, Bahar OS, Jennings Mayo-Wilson L, Namuwonge F, Nattabi J, Magorokosho N, Tozan Y, Witte SS, Ssewamala FM. Self-Reported Adherence to Antiretroviral Therapy (ART) Among Women Engaged in Commercial Sex Work in Southern Uganda. AIDS Behav 2023; 27:1004-1012. [PMID: 36066764 PMCID: PMC9974600 DOI: 10.1007/s10461-022-03837-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2022] [Indexed: 11/01/2022]
Abstract
We examined the correlates of self-reported adherence to antiretroviral therapy (ART) among women engaged in commercial sex work (WESW) in Uganda. We used baseline data from a longitudinal study, which recruited 542 WESW in Southern Uganda. We used nested regression models to determine the individual and family, and economic level correlates of self-reported adherence. Study findings show that older age (OR = 1.07, 95% CI = 1.013, 1.139), secondary education (OR = 2.01, 95% CI = 1.306, 3.084), large household size (OR = 1.08, 95% CI = 1.020, 1.136), high family cohesion (OR = 1.06, 95% CI = 1.052, 1.065), and high financial self-efficacy (OR = 1.07, 95% CI = 1.006, 1.130) were associated with good self-reported adherence to ART. Married women (OR=-0.39, 95% CI = 0.197, 0.774), depression (OR = 0.85, 95% CI = 0.744, 0.969), alcohol use (OR = 0.72, 95% CI = 0.548, 0.954), ever been arrested (OR = 0.58, 95% CI = 0.341, 0.997), and high household assets ownership (OR = 0.48, 95% CI = 0.313, 0.724) were associated with poor self-reported adherence to ART. Findings suggest a need to adopt a multi-level approach to address gaps in ART adherence among WESW.
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Affiliation(s)
- Joshua Kiyingi
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Proscovia Nabunya
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Samuel Kizito
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Josephine Nabayinda
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Edward Nsubuga
- International Center for Child Health and Development (ICHAD), Masaka, Uganda
| | - Ozge Sensoy Bahar
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Larissa Jennings Mayo-Wilson
- University of North Carolina Gillings School of Global Public Health, 170 Rosenau Hall, 27599, Chapel Hill, NC, USA
| | - Flavia Namuwonge
- International Center for Child Health and Development (ICHAD), Masaka, Uganda
| | - Jennifer Nattabi
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Natasja Magorokosho
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA
| | - Yesim Tozan
- New York University College of Global Public Health, 14 East 4th street, 3rd floor, 10003, New York, NY, USA
| | - Susan S Witte
- Columbia University School of Social Work, 1255 Amsterdam Avenue, 10027, New York, NY, USA
| | - Fred M Ssewamala
- International Center for Child Health and Development (ICHAD), Washington University in St. Louis Brown School, 1 Brookings Drive, 63130, St. Louis, MO, USA.
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Kiyingi J, Nabunya P, Bahar OS, Mayo-Wilson LJ, Tozan Y, Nabayinda J, Namuwonge F, Nsubuga E, Kizito S, Nattabi J, Nakabuye F, Kagayi J, Mwebembezi A, Witte SS, Ssewamala FM. Prevalence and predictors of HIV and sexually transmitted infections among vulnerable women engaged in sex work: Findings from the Kyaterekera Project in Southern Uganda. PLoS One 2022; 17:e0273238. [PMID: 36174054 PMCID: PMC9522279 DOI: 10.1371/journal.pone.0273238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 08/03/2022] [Indexed: 02/04/2023] Open
Abstract
INTRODUCTION Women engaged in sex work (WESW) have an elevated risk of the human immunodeficiency virus (HIV) and sexually transmitted infections (STI). Estimates are three times higher than the general population. Understanding the predictors of HIV and STI among WESW is crucial in developing more focused HIV and STI prevention interventions among this population. The study examined the prevalence and predictors of HIV and STI among WESW in the Southern part of Uganda. METHODOLOGY Baseline data from the Kyaterekera study involving 542 WESW (ages 18-55) recruited from 19 HIV hotspots in the greater Masaka region in Uganda was utilized. HIV and STI prevalence was estimated using blood and vaginal fluid samples bioassay. Hierarchical regression models were used to determine the predictors of HIV and STI among WESW. RESULTS Of the total sample, 41% (n = 220) were found to be HIV positive; and 10.5% (n = 57) tested positive for at least one of the three STI (Neisseria gonorrhoeae, Chlamydia trachomatis and Trichomonas vaginalis) regardless of their HIV status. Older age (b = 0.09, 95%CI = 0.06, 0.13, p≤0.001), lower levels of education (b = -0.79, 95%CI = -1.46, -0.11, p≤0.05), fewer numbers of children in the household (b = -0.18, 95%CI = -0.36, -0.01), p≤0.05), location (i.e., fishing village (b = 0.51, 95%CI = 0.16, 0.85, p≤0.01) or small town (b = -0.60, 95%CI = -0.92, -0.28, p≤0.001)), drug use (b = 0.58, 95%CI = 0.076, 1.08, p≤0.05) and financial self-efficacy (b = 0.05, 95%CI = -0.10, 0.00, p≤0.05), were associated with the risk of HIV infections among WESW. Domestic violence attitudes (b = -0.24, 95%CI = -0.42, -0.07, p≤0.01) and financial distress (b = -0.07, 95%CI = -0.14, -0.004, p≤0.05) were associated with the risk of STI infection among WESW. CONCLUSION Study findings show a high prevalence of HIV among WESW compared to the general women population. Individual and family level, behavioural and economic factors were associated with increased HIV and STI infection among WESW. Therefore, there is a need for WESW focused HIV and STI risk reduction and economic empowerment interventions to reduce these burdens.
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Affiliation(s)
- Joshua Kiyingi
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
- Reach the Youth Uganda, Kampala, Uganda
| | - Proscovia Nabunya
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
| | - Ozge Sensoy Bahar
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
| | - Larissa Jennings Mayo-Wilson
- Department of Applied Health Science, School of Public Health, Indiana University, Bloomington, Indiana, United States of America
| | - Yesim Tozan
- College of Global Public Health, New York University, New York, NY, United States of America
| | - Josephine Nabayinda
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
| | - Flavia Namuwonge
- International Center for Child Health and Development (ICHAD), Masaka, Uganda
| | - Edward Nsubuga
- International Center for Child Health and Development (ICHAD), Masaka, Uganda
| | - Samuel Kizito
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
| | - Jennifer Nattabi
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
| | - Fatuma Nakabuye
- International Center for Child Health and Development (ICHAD), Masaka, Uganda
| | | | | | - Susan S. Witte
- School of Social Work, Columbia University, New York, NY, United States of America
| | - Fred M. Ssewamala
- International Center for Child Health and Development (ICHAD), Brown School, Washington University in St. Louis Brown School, St. Louis, Missouri, United States of America
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Sensoy Bahar O, Nabunya P, Nabayinda J, Witte SS, Kiyingi J, Mayo-Wilson LJ, Filippone P, Yang LS, Nakigudde J, Tozan Y, Ssewamala FM. "I expected little, although I learned a lot": perceived benefits of participating in HIV risk reduction sessions among women engaged in sex work in Uganda. BMC Womens Health 2022; 22:162. [PMID: 35562821 PMCID: PMC9100307 DOI: 10.1186/s12905-022-01759-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The global HIV burden remains a public health concern. Women engaged in sex work (WESW) are at higher risk of acquiring HIV compared to the general adult population. Uganda reports high rates of HIV prevalence among WESW. While WESW in Uganda have long been the subject of surveillance studies, they have not been targeted by theory-informed HIV prevention intervention approaches. In this study, we explored the perceived benefits of an evidence-based HIV risk reduction intervention that was implemented as part of a combination intervention tested in a clinical trial in Uganda. METHODS As part of a larger randomized clinical trial, we conducted semi-structured in-depth interviews with 20 WESW selected using a stratified purposive sampling. All interviews were conducted in Luganda, language spoken in the study area, and audio-recorded. They were transcribed verbatim and translated to English. Thematic analysis was used to analyze the data. RESULTS WESW's narratives focused on: (1) condom use; (2) alcohol/drug consumption; (3) PrEP use; (4) "handling" customers; and (5) "massaging" customers. WESW agreed that male condom was one of the important learning points for them and planned to continue using them while female condoms were received with mixed reactions. Many women appreciated receiving information about the risks of consuming alcohol and drugs, and discussed how they reduced/ eliminated their consumption. PrEP information was appreciated though identified by fewer WESW. Handling a client was discussed as a helpful strategy for safer sex through improved ability to convince customers to use condoms or avoiding sex. Massaging was also beneficial to avoid penetrative sex, but similar to female condom, massaging also yielded mixed perceptions. CONCLUSION WESW found the intervention beneficial and described ways in which it improved their ability to engage in safer sex and stay healthy. The fact that WESW identified other strategies beyond condom use as helpful underlines the importance of adopting a comprehensive approach to behavioral interventions targeting HIV prevention even when combined with other interventions. Additionally, WESW's narratives suggest that incorporating the tenets of social cognitive theory and harm reduction approaches in HIV prevention among this population can result in risk behavior change.
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Affiliation(s)
- Ozge Sensoy Bahar
- Brown School, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA.
- International Center for Child Health and Development, Brown School, Washington University in St. Louis, St. Louis, MO, USA.
| | - Proscovia Nabunya
- Brown School, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
- International Center for Child Health and Development, Brown School, Washington University in St. Louis, St. Louis, MO, USA
| | - Josephine Nabayinda
- International Center for Child Health and Development Field Office, Masaka, Uganda
| | - Susan S Witte
- Columbia University School of Social Work, New York City, NY, USA
| | - Joshua Kiyingi
- Brown School, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
- International Center for Child Health and Development, Brown School, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Prema Filippone
- Columbia University School of Social Work, New York City, NY, USA
| | | | - Janet Nakigudde
- College of Health Sciences, Makerere University, Kampala, Uganda
| | - Yesim Tozan
- School of Global Public Health, New York University, New York City, NY, USA
| | - Fred M Ssewamala
- Brown School, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA
- International Center for Child Health and Development, Brown School, Washington University in St. Louis, St. Louis, MO, USA
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Nabunya P, Kiyingi J, Witte SS, Sensoy Bahar O, Jennings Mayo-Wilson L, Tozan Y, Nabayinda J, Mwebembezi A, Tumwesige W, Mukasa B, Namirembe R, Kagaayi J, Nakigudde J, McKay MM, Ssewamala FM. Working with economically vulnerable women engaged in sex work: Collaborating with community stakeholders in Southern Uganda. Glob Public Health 2021; 17:1215-1231. [PMID: 33881949 DOI: 10.1080/17441692.2021.1916054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
CLINICAL TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT03583541.
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Affiliation(s)
- Proscovia Nabunya
- Brown School, Washington University in St. Louis, St. Louis, MO, USA.,International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
| | - Joshua Kiyingi
- Brown School, Washington University in St. Louis, St. Louis, MO, USA.,International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
| | - Susan S Witte
- School of Social Work, Columbia University, New York, NY, USA
| | - Ozge Sensoy Bahar
- Brown School, Washington University in St. Louis, St. Louis, MO, USA.,International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Yesim Tozan
- School of Global Public Health, New York University, New York, NY, USA
| | - Josephine Nabayinda
- International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
| | - Abel Mwebembezi
- International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA.,Reach the Youth (RTY) Uganda, Kampala, Uganda
| | - Wilberforce Tumwesige
- Brown School, Washington University in St. Louis, St. Louis, MO, USA.,International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Rashida Namirembe
- Brown School, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Janet Nakigudde
- Department of Psychiatry, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Mary M McKay
- Brown School, Washington University in St. Louis, St. Louis, MO, USA
| | - Fred M Ssewamala
- Brown School, Washington University in St. Louis, St. Louis, MO, USA.,International Center for Child Health and Development, Washington University in St. Louis, St. Louis, MO, USA
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Stone J, Mukandavire C, Boily M, Fraser H, Mishra S, Schwartz S, Rao A, Looker KJ, Quaife M, Terris‐Prestholt F, Marr A, Lane T, Coetzee J, Gray G, Otwombe K, Milovanovic M, Hausler H, Young K, Mcingana M, Ncedani M, Puren A, Hunt G, Kose Z, Phaswana‐Mafuya N, Baral S, Vickerman P. Estimating the contribution of key populations towards HIV transmission in South Africa. J Int AIDS Soc 2021; 24:e25650. [PMID: 33533115 PMCID: PMC7855076 DOI: 10.1002/jia2.25650] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/26/2020] [Accepted: 11/12/2020] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION In generalized epidemic settings, there is insufficient understanding of how the unmet HIV prevention and treatment needs of key populations (KPs), such as female sex workers (FSWs) and men who have sex with men (MSM), contribute to HIV transmission. In such settings, it is typically assumed that HIV transmission is driven by the general population. We estimated the contribution of commercial sex, sex between men, and other heterosexual partnerships to HIV transmission in South Africa (SA). METHODS We developed the "Key-Pop Model"; a dynamic transmission model of HIV among FSWs, their clients, MSM, and the broader population in SA. The model was parameterized and calibrated using demographic, behavioural and epidemiological data from national household surveys and KP surveys. We estimated the contribution of commercial sex, sex between men and sex among heterosexual partnerships of different sub-groups to HIV transmission over 2010 to 2019. We also estimated the efficiency (HIV infections averted per person-year of intervention) and prevented fraction (% IA) over 10-years from scaling-up ART (to 81% coverage) in different sub-populations from 2020. RESULTS Sex between FSWs and their paying clients, and between clients with their non-paying partners contributed 6.9% (95% credibility interval 4.5% to 9.3%) and 41.9% (35.1% to 53.2%) of new HIV infections in SA over 2010 to 2019 respectively. Sex between low-risk groups contributed 59.7% (47.6% to 68.5%), sex between men contributed 5.3% (2.3% to 14.1%) and sex between MSM and their female partners contributed 3.7% (1.6% to 9.8%). Going forward, the largest population-level impact on HIV transmission can be achieved from scaling up ART to clients of FSWs (% IA = 18.2% (14.0% to 24.4%) or low-risk individuals (% IA = 20.6% (14.7 to 27.5) over 2020 to 2030), with ART scale-up among KPs being most efficient. CONCLUSIONS Clients of FSWs play a fundamental role in HIV transmission in SA. Addressing the HIV prevention and treatment needs of KPs in generalized HIV epidemics is central to a comprehensive HIV response.
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Affiliation(s)
- Jack Stone
- Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | - Christinah Mukandavire
- Department of Infectious Disease EpidemiologyLondon School of Hygiene and Tropical MedicineLondonUnited Kingdom
| | - Marie‐Claude Boily
- Department of Infectious Disease EpidemiologyImperial CollegeLondonUnited Kingdom
| | - Hannah Fraser
- Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | | | - Sheree Schwartz
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Amrita Rao
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | | | - Matthew Quaife
- London School of Hygiene and Tropical MedicineLondonUnited Kingdom
| | | | - Alexander Marr
- University of California San FranciscoSan FranciscoCAUSA
| | - Tim Lane
- Equal InternationalWashingtonDCUSA
| | - Jenny Coetzee
- Perinatal HIV Research UnitFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
- South African Medical Research CouncilCape TownSouth Africa
| | - Glenda Gray
- South African Medical Research CouncilCape TownSouth Africa
| | - Kennedy Otwombe
- Perinatal HIV Research UnitFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Minja Milovanovic
- Perinatal HIV Research UnitFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | | | | | | | | | - Adrian Puren
- National Institute of Communicable DiseasesJohannesburgSouth Africa
| | - Gillian Hunt
- National Institute of Communicable DiseasesJohannesburgSouth Africa
| | - Zamakayise Kose
- Research and Innovation OfficeNorth West UniversityPotchefstroomSouth Africa
| | | | - Stefan Baral
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Peter Vickerman
- Population Health SciencesUniversity of BristolBristolUnited Kingdom
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Tadesse AW, Chernet W, Ahmed O, Tadesse W. HIV/AIDS Preventive Practice and Associated Factors among Female Sex Workers in Afar Region, Ethiopia: A Community Based Study. Ethiop J Health Sci 2020; 30:45-54. [PMID: 32116432 PMCID: PMC7036458 DOI: 10.4314/ejhs.v30i1.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Female Sex Workers (FSWs) are a high-risk population for Human Immune Virus (HIV) infection. However, HIV related services for sex workers are given little attention in developing nations like Ethiopia. Thus, this study attempted to assess HIV preventive practice and associated factors among FSWs in the Afar region. Methods Community-based cross-sectional study was conducted on 419 FSWs from April 1st to May 2nd in 2018 in four hotspot towns (i.e. Logia, Mille, Gedamayitu and Awash) found in Afar region. The study participants were selected using snowball sampling technique. The sociodemographic and behavioral data were collected using face-to-face interview. Logistic regression analyses were done to determine factors associated with HIV prevention practices. The statistically significant level was declared at a P-value < 0.05. Results The HIV/AIDS preventive practice among FSWs was 61.1% [95% CI 56.2% - 65.9%]. The multivariable logistic regression analysis showed that being single [AOR=2.57: 95% CI 1.06, 6.21: P<0.05] and urban residence before being FSWs [AOR= 3.26: 95% CI 1.25, 8.54: P<0.05] were found to be enhancing factors of the preventive practice of HIV/AIDS. However, being illiterate [AOR=0.133: 95% CI 0.032, 0.557: P<0.01], young age [AOR=0.065: 95% CI 0.021, 0.196: P<0.001], being alcohol drinker [AOR= 0.104: 95% CI 0.026, 0.417: P<0.01], being cigarette smoker [AOR= 0.096: 95% CI 0.022, 0.414: P<0.01] and lack of aware of HIV transmission [AOR= 0.08: 95% CI 0.03, 0.22: P<0.001] were the hindering factors of the preventive practice of HIV among FSWs. Conclusion The HIV/AIDS preventive practice among FSWs in Afar region hotspot towns (61.1%) is still very low compared to the country progress report on HIV response for FSWs (98%). The regional health bureau should design inclusive strategies to improve the HIV preventive practice among FSWs. These includes regular HIV testing campaigns, sustainable condom distribution in the hotspot towns. The region should encourage NGOs to work on inclusive HIV prevention upon FSWs. Female sex workers should be aware of the risky behaviors that lead to HIV. Additional qualitative methods are also recommended.
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Affiliation(s)
- Abay Woday Tadesse
- Samara University, College of Health Science, Department of Public Health, Afar, Ethiopia
| | - Wossen Chernet
- Save the Children, Semera Field Office, Semera, Afar, Ethiopia
| | - Osman Ahmed
- Samara University, College of Health Science, Department of Nursing, Afar, Ethiopia
| | - Woldemichael Tadesse
- Samara University, College of Health Science, Department of Nursing, Afar, Ethiopia
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9
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Jonas A, Patel SV, Katuta F, Maher AD, Banda KM, Gerndt K, Pietersen I, Menezes de Prata N, Mutenda N, Nakanyala T, Kisting E, Kawana B, Nietschke AM, Prybylski D, McFarland W, Lowrance DW. HIV Prevalence, Risk Factors for Infection, and Uptake of Prevention, Testing, and Treatment among Female Sex Workers in Namibia. J Epidemiol Glob Health 2020; 10:351-358. [PMID: 32959617 PMCID: PMC7758860 DOI: 10.2991/jegh.k.200603.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 05/21/2020] [Indexed: 11/26/2022] Open
Abstract
Background: In most settings, Female Sex Workers (FSW) bear a disproportionate burden of Human Immunodeficiency Virus (HIV) disease worldwide. Representative data to inform the development of behavioral and biomedical interventions for FSW in Namibia have not been published. Objectives: Our objectives were to measure HIV prevalence, identify risk factors for infection, and describe uptake of prevention, testing, and treatment among FSW in Namibia. Methods: We conducted cross-sectional surveys using Respondent-driven Sampling (RDS) in the Namibian cities of Katima Mulilo, Oshikango, Swakopmund/Walvis Bay, and Windhoek. Participating FSW completed behavioral questionnaires and rapid HIV testing. Results: City-specific ranges of key indicators were: HIV prevalence (31.0–52.3%), reached by prevention programs in the past 12 months (46.9–73.6%), condom use at last sex with commercial (82.1–91.1%) and non-commercial (87.0–94.2%) partners, and tested for HIV within past 12 months or already aware of HIV-positive serostatus (56.9–82.1%). Factors associated with HIV infection varied by site and included: older age, having multiple commercial or non-commercial sex partners, unemployment, being currently out of school, and lower education level. Among HIV-positive FSW, 57.1% were aware of their HIV-positive serostatus and 33.7% were on antiretroviral treatment. Discussion: Our results indicate extremely high HIV prevalence and low levels of case identification and treatment among FSW in Namibia. Our results, which are the first representative community-based estimates among FSW in Namibia, can inform the scale-up of interventions to reduce the risk for HIV acquisition and onward transmission, including treatment as prevention and pre-exposure prophylaxis.
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Affiliation(s)
- Anna Jonas
- Ministry of Health and Social Services, Windhoek, Namibia
| | - Sadhna V Patel
- Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Windhoek, Namibia.,Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Atlanta, USA
| | - Frieda Katuta
- Ministry of Health and Social Services, Windhoek, Namibia
| | - Andrew D Maher
- University of California San Francisco, Institute for Global Health Sciences, San Francisco, USA
| | - Karen M Banda
- Ministry of Health and Social Services, Windhoek, Namibia
| | - Krysta Gerndt
- University of California San Francisco, Institute for Global Health Sciences, San Francisco, USA
| | | | - Neia Menezes de Prata
- Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Windhoek, Namibia.,Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Atlanta, USA
| | | | - Tuli Nakanyala
- Ministry of Health and Social Services, Windhoek, Namibia
| | - Esme Kisting
- Ministry of Health and Social Services, Windhoek, Namibia
| | - Brown Kawana
- University of California San Francisco, Institute for Global Health Sciences, San Francisco, USA
| | | | - Dimitri Prybylski
- Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Windhoek, Namibia.,Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Atlanta, USA
| | - Willi McFarland
- University of California San Francisco, Institute for Global Health Sciences, San Francisco, USA
| | - David W Lowrance
- Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Windhoek, Namibia.,Division of Global HIV and Tuberculosis, U.S. Centers for Disease Control and Prevention, Atlanta, USA
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10
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Owen BN, Baggaley RF, Elmes J, Harvey A, Shubber Z, Butler AR, Silhol R, Anton P, Shacklett B, van der Straten A, Boily MC. What Proportion of Female Sex Workers Practise anal Intercourse and How Frequently? A Systematic Review and Meta-analysis. AIDS Behav 2020; 24:697-713. [PMID: 30953304 PMCID: PMC6778486 DOI: 10.1007/s10461-019-02477-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
HIV is more efficiently acquired during receptive anal intercourse (AI) compared to vaginal intercourse (VI) and may contribute substantially to female sex workers' (FSW) high HIV burden. We aim to determine how common and frequent AI is among FSW globally. We searched PubMed, Embase and PsycINFO for studies reporting the proportion of FSW practising AI (prevalence) and/or the number of AI acts (frequency) worldwide from 01/1980 to 10/2018. We assessed the influence of participant and study characteristics on AI prevalence (e.g. continent, study year and interview method) through sub-group analysis. Of 15,830 identified studies, 131 were included. Nearly all (N = 128) reported AI prevalence and few frequency (N = 13), over various recall periods. Most studies used face-to-face interviews (N = 111). Pooled prevalences varied little by recall period (lifetime: 15.7% 95%CI 12.2-19.3%, N = 30, I2 = 99%; past month: 16.2% 95%CI 10.8-21.6%, N = 18, I2 = 99%). The pooled proportion of FSW reporting < 100% condom use tended to be non-significantly higher during AI compared to during VI (e.g. any unprotected VI: 19.1% 95%CI 1.7-36.4, N = 5 and any unprotected AI: 46.4% 95%CI 9.1-83.6, N = 5 in the past week). Across all study participants, between 2.4 and 15.9% (N = 6) of all intercourse acts (AI and VI) were anal. Neither AI prevalence nor frequency varied substantially by any participant or study characteristics. Although varied, AI among FSW is generally common, inconsistently protected with condoms and practiced sufficiently frequently to contribute substantially to HIV acquisition in this risk group. Interventions to address barriers to condom use are needed.
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Affiliation(s)
- Branwen Nia Owen
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK.
| | - Rebecca F Baggaley
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK
| | - Jocelyn Elmes
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK
| | - Amy Harvey
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
| | - Zara Shubber
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
| | - Ailsa R Butler
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
| | - Romain Silhol
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
| | - Peter Anton
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, USA
| | - Barbara Shacklett
- Department of Medical Microbiology and Immunology, University of California, Davis, USA
| | - Ariane van der Straten
- Women's Global Health Imperative Program, RTI International, San Francisco, USA
- Department of Medicine, Center for AIDS Prevention Studies, UCSF, San Francisco, USA
| | - Marie-Claude Boily
- Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, St Mary's Campus, Praed Street, London, W2 1NY, UK
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11
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Moazzami M, Ketende S, Lyons C, Rao A, Taruberekera N, Nkonyana J, Mothopeng T, Schwartz S, Baral S. Characterizing Multi-level Determinants of HIV Prevalence Among Female Sex Workers in Maseru and Maputsoe, Lesotho. AIDS Behav 2020; 24:714-723. [PMID: 31041624 PMCID: PMC6821589 DOI: 10.1007/s10461-019-02495-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Lesotho has a broadly generalized HIV epidemic with nearly one in three reproductive-aged women living with HIV. Given this context, there has been limited research on specific HIV risks. In response, this study aimed to characterize the burden of HIV and multi-level correlates of HIV infection amongst female sex workers (FSW) in Lesotho. Respondent driven sampling was used to recruit 744 FSW from February to September 2014 in Maseru and Maputsoe, Lesotho. Robust Poisson regression was used to model weighted prevalence ratios (PR) for HIV, leveraging a modified social ecological model. The HIV prevalence among participants was 71.9% (534/743), with a mean age of 26.8 (SD 7.2). Both individual and structural determinants involving stigma were significantly associated with HIV. Women with the highest enacted stigma score (≥ 5) had a 26% higher prevalence of HIV than individuals that did not experience any stigma (PR 1.26, 95% CI 1.01, 1.57). These data reinforce the extraordinarily high burden of HIV borne by FSW even in the context of the generalized HIV epidemic observed in Lesotho and across southern Africa. Moreover, stigma represents a structural determinant that is fundamental to an effective HIV response for FSW in Lesotho.
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Affiliation(s)
- Mitra Moazzami
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Sosthenes Ketende
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Carrie Lyons
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Amrita Rao
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | | | | | | | - Sheree Schwartz
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Stefan Baral
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
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12
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Morhason-Bello IO, Kabakama S, Baisley K, Francis SC, Watson-Jones D. Reported oral and anal sex among adolescents and adults reporting heterosexual sex in sub-Saharan Africa: a systematic review. Reprod Health 2019; 16:48. [PMID: 31060573 PMCID: PMC6501425 DOI: 10.1186/s12978-019-0722-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 04/15/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Oral and anal sexual behaviours are increasingly reported among adolescents and adults reporting heterosexual sex in peer-reviewed journals in high income countries, but less is known about these behaviours in low and middle-income countries, especially in sub-Saharan Africa. The aim of this systematic review is to describe the prevalence of, and motivations for, oral and anal sex among adolescents and adults reporting heterosexual sex in sub-Saharan Africa. METHODS A systematic review of published articles that reported oral and or anal sex in sub-Saharan Africa was conducted from seven databases up to and including 30th August 2018. RESULTS Of 13,592 articles, 103 met the inclusion criteria. The prevalence of reporting ever practising oral sex among adolescents, university students and a combined population of adolescents/adults ranged from 1.7-26.6%, 5.0-46.4% and 3.0-47.2% respectively. Similarly, prevalences of reported ever practising anal sex ranged from 6.4-12.4% among adolescents, 0.3-46.5% among university students and 4.3-37.8% amongst combined population of adolescents and adults. Higher prevalences of oral and anal sex were reported among populations at high-risk for sexually transmitted infections and HIV and university students and, in most studies, both behaviours were more commonly reported by males than females. Heterosexual oral and anal sexual acts were associated with some high-risk behaviours such as inconsistent condom use and multiple sexual partners. CONCLUSION Reported oral and anal sex between men and women are prevalent behaviours in sub-Saharan Africa. Health professionals and policy makers should be aware of these behaviours and their potential associated health risks.
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Affiliation(s)
- Imran O. Morhason-Bello
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
- Obstetrics and Gynaecology Department, Faculty of Clinical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Severin Kabakama
- Mwanza Intervention Trials Unit, National Institute for Medical Research, PO Box 11936, Mwanza, Tanzania
| | - Kathy Baisley
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
| | - Suzanna C. Francis
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
| | - Deborah Watson-Jones
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
- Mwanza Intervention Trials Unit, National Institute for Medical Research, PO Box 11936, Mwanza, Tanzania
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13
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Leddy AM, Kerrigan D, Kennedy C, Mbwambo J, Likindikoki S, Underwood C. 'You already drank my beer, I can decide anything': using structuration theory to explore the dynamics of alcohol use, gender-based violence and HIV risk among female sex workers in Tanzania. CULTURE, HEALTH & SEXUALITY 2018; 20:1409-1423. [PMID: 29547070 PMCID: PMC6167187 DOI: 10.1080/13691058.2018.1438667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Female sex workers experience high rates of gender-based violence and HIV. Alcohol has been shown to facilitate women's risk of both gender-based violence and HIV; however, little research has explored how aspects of the sex work environment shape this risk. Drawing on structuration theory, this study explored how social conduct is patterned across time and space within the sex work environment to influence alcohol consumption, gender-based violence and HIV risk among female sex workers. Qualitative in-depth interviews were conducted with 24 female sex workers enrolled in an ongoing community randomised controlled trial of a combination HIV prevention intervention in Iringa, Tanzania. Data were analysed using both inductive and deductive approaches. Findings reveal how routine interactions between female sex workers and their clients occur at three moments of time and space during the sex exchange process to facilitate alcohol consumption and increase women's risk of gender-based violence and HIV. Findings also highlight how sex workers utilise collective agency to address aspects of the sex work environment that place them at risk of alcohol abuse, gender-based violence and HIV. Implications for future interventions to prevent gender-based violence and HIV among female sex workers in Tanzania and similar contexts are discussed.
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Affiliation(s)
- Anna M. Leddy
- Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Deanna Kerrigan
- Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Caitlin Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205 USA
| | - Jessie Mbwambo
- Muhimbili University of Health and Allied Sciences, United Nations Rd., Dar es Salaam, Tanzania
| | - Samuel Likindikoki
- Muhimbili University of Health and Allied Sciences, United Nations Rd., Dar es Salaam, Tanzania
| | - Carol Underwood
- Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Center for Communication Programs, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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14
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Makhakhe NF, Lane T, McIntyre J, Struthers H. Sexual transactions between long distance truck drivers and female sex workers in South Africa. Glob Health Action 2018; 10:1346164. [PMID: 28764585 PMCID: PMC5645692 DOI: 10.1080/16549716.2017.1346164] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Female sex workers (FSWs) and long distance truck drivers (LDTDs) are considered key populations at high risk for HIV transmission due to high prevalence. The intersection of these mobile populations presents unique challenges in the fight against HIV and the movement towards reducing new infections. Objective: The purpose of this study was to explore the nature of sex trade along a particular transport route. Sexual transactions and the vulnerabilities that exist between these two groups with regards to HIV/AIDS are described, with the purpose of furthering the agenda for targeted interventions. Methods: Qualitative in-depth interviews were conducted with 14 participants, seven FSWs and seven LDTDs. We recruited FSWs through snowballing, and LDTDs through intercepts at truck stops. Semi-structured interview guides were used for data collection, and thematic analysis was conducted. Results: The sex trade in this study is characterized by competition, fuelled by money-driven and age-disparate rivalry. Despite widespread HIV knowledge, FSWs contend with persistent challenges regarding condom use negotiation, induced by more money in the exchange for unsafe sex. Despite the placement of wellness centres in truck stops along the highway, LDTDs face stigma related challenges with regards to testing for HIV and personal acknowledgement of their involvement in the sex trade. Conclusion: The nature of the sex trade along the highway continues to be risky despite the availability of HIV testing and antiretroviral treatment (ART). The sex trade is perceived to be increasing along trucking routes, in spite of measures instituted to limit access to FSWs. FSWs struggle to cope with the pressure of unprotected sex because of the need to generate more income, as well as avoid incidents of violence and threats. Interventions along transport routes need to be inclusive of FSWs who could play a vital role in stigma reduction amongst LDTDs through peer education.
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Affiliation(s)
- Nosipho Faith Makhakhe
- a Department of Psychology, School of Applied Human Sciences , University of KwaZulu-Natal , Durban , South Africa
| | - Tim Lane
- b Department of Medicine , Center for AIDS Prevention Studies , San Francisco , CA , USA
| | - James McIntyre
- c Anova Health Institute , Johannesburg , South Africa.,d School of Public Health & Family Medicine , University of Cape Town , Cape Town , South Africa
| | - Helen Struthers
- c Anova Health Institute , Johannesburg , South Africa.,e Division of Infectious Diseases & HIV Medicine, Department of Medicine , University of Cape Town , Cape Town , South Africa
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15
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Grasso MA, Manyuchi AE, Sibanyoni M, Marr A, Osmand T, Isdahl Z, Struthers H, McIntyre JA, Venter F, Rees HV, Lane T. Estimating the Population Size of Female Sex Workers in Three South African Cities: Results and Recommendations From the 2013-2014 South Africa Health Monitoring Survey and Stakeholder Consensus. JMIR Public Health Surveill 2018; 4:e10188. [PMID: 30087089 PMCID: PMC6104000 DOI: 10.2196/10188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/21/2018] [Accepted: 06/11/2018] [Indexed: 11/20/2022] Open
Abstract
Background Robust population size estimates of female sex workers and other key populations in South Africa face multiple methodological limitations, including inconsistencies in surveillance and programmatic indicators. This has, consequently, challenged the appropriate allocation of resources and benchmark-setting necessary to an effective HIV response. A 2013-2014 integrated biological and behavioral surveillance (IBBS) survey from South Africa showed alarmingly high HIV prevalence among female sex workers in South Africa’s three largest cities of Johannesburg (71.8%), Cape Town (39.7%), and eThekwini (53.5%). The survey also included several multiplier-based population size estimation methods. Objective The objective of our study was to present the selected population size estimation methods used in an IBBS survey and the subsequent participatory process used to estimate the number of female sex workers in three South African cities. Methods In 2013-2014, we used respondent-driven sampling to recruit independent samples of female sex workers for IBBS surveys in Johannesburg, Cape Town, and eThekwini. We embedded multiple multiplier-based population size estimation methods into the survey, from which investigators calculated weighted estimates and ranges of population size estimates for each city’s female sex worker population. Following data analysis, investigators consulted civil society stakeholders to present survey results and size estimates and facilitated stakeholder vetting of individual estimates to arrive at consensus point estimates with upper and lower plausibility bounds. Results In total, 764, 650, and 766 female sex workers participated in the survey in Johannesburg, Cape Town, and eThekwini, respectively. For size estimation, investigators calculated preliminary point estimates as the median of the multiple estimation methods embedded in the IBBS survey and presented these to a civil society-convened stakeholder group. Stakeholders vetted all estimates in light of other data points, including programmatic experience, ensuring inclusion only of plausible point estimates in median calculation. After vetting, stakeholders adopted three consensus point estimates with plausible ranges: Johannesburg 7697 (5000-10,895); Cape Town 6500 (4579-9000); eThekwini 9323 (4000-10,000). Conclusions Using several population size estimates methods embedded in an IBBS survey and a participatory stakeholder consensus process, the South Africa Health Monitoring Survey produced female sex worker size estimates representing approximately 0.48%, 0.49%, and 0.77% of the adult female population in Johannesburg, Cape Town, and eThekwini, respectively. In data-sparse environments, stakeholder engagement and consensus is critical to vetting of multiple empirically based size estimates procedures to ensure adoption and utilization of data-informed size estimates for coordinated national and subnational benchmarking. It also has the potential to increase coherence in national and key population-specific HIV responses and to decrease the likelihood of duplicative and wasteful resource allocation. We recommend building cooperative and productive academic-civil society partnerships around estimates and other strategic information dissemination and sharing to facilitate the incorporation of additional data as it becomes available, as these additional data points may minimize the impact of the known and unknown biases inherent in any single, investigator-calculated method.
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Affiliation(s)
- Michael A Grasso
- Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, United States
| | | | | | - Alex Marr
- Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, United States
| | - Tom Osmand
- Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, United States
| | - Zachary Isdahl
- Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, United States
| | - Helen Struthers
- Anova Health Institute, Johannesburg, South Africa.,Division of Infectious Diseases & HIV Medicine, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - James A McIntyre
- Anova Health Institute, Johannesburg, South Africa.,School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Francois Venter
- Wits Reproductive Health and HIV Institute, University of Witwatersrand, Johannesburg, South Africa
| | - Helen V Rees
- Wits Reproductive Health and HIV Institute, University of Witwatersrand, Johannesburg, South Africa
| | - Tim Lane
- Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, United States
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16
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Dietrich JJ, Lazarus E, Andrasik M, Hornschuh S, Otwombe K, Morgan C, Isaacs AJ, Huang Y, Laher F, Kublin JG, Gray GE. Mobile Phone Questionnaires for Sexual Risk Data Collection Among Young Women in Soweto, South Africa. AIDS Behav 2018; 22:2312-2321. [PMID: 29594618 DOI: 10.1007/s10461-018-2080-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Recall and social desirability bias undermine self-report of paper-and-pencil questionnaires. Mobile phone questionnaires may overcome these challenges. We assessed and compared sexual risk behavior reporting via in-clinic paper-and-pencil and mobile phone questionnaires. HVTN 915 was a prospective cohort study of 50 adult women in Soweto, who completed daily mobile phone, and eight interviewer-administered in-clinic questionnaires over 12 weeks to assess sexual risk. Daily mobile phone response rates were 82% (n = 3486/4500); 45% (n = 1565/3486) reported vaginal sex (median sex acts 2 (IQR: 1-3)) within 24 h and 40% (n = 618/1565) consistent condom. Vaginal sex reporting was significantly higher via mobile phone across all visits (p < 0.0001). There was no significant difference in condom use reporting by mobile phone and in-clinic paper-based questionnaires across all visits (p = 0.5134). The results show high adherence and reporting of sex on the mobile phone questionnaire. We demonstrate feasibility in collecting mobile phone sexual risk data.
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Affiliation(s)
- Janan J Dietrich
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa.
| | - Erica Lazarus
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa
| | - Michele Andrasik
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Stefanie Hornschuh
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa
| | - Kennedy Otwombe
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa
| | - Cecilia Morgan
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Abby J Isaacs
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Yunda Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Fatima Laher
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa
| | - James G Kublin
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Glenda E Gray
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, PO BOX 114, Diepkloof, Soweto, Johannesburg, 1864, South Africa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- South African Medical Research Council, Cape Town, South Africa
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17
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Dubbink JH, Verweij SP, Struthers HE, Ouburg S, McIntyre JA, Morré SA, Peters RP. Genital Chlamydia trachomatis and Neisseria gonorrhoeae infections among women in sub-Saharan Africa: A structured review. Int J STD AIDS 2018; 29:806-824. [PMID: 29486628 DOI: 10.1177/0956462418758224] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Chlamydia trachomatis and Neisseria gonorrhoeae constitute major public health problems among women, but the burden of infection in sub-Saharan Africa is poorly documented. We conducted a structured review of the prevalence and incidence of genital, oral and anal C. trachomatis and N. gonorrhoeae infection in women in sub-Saharan Africa. We searched Medline, EMBASE and Web of Science over a 10-year period for studies on epidemiology of genital, oral and anal chlamydial infection and gonorrhoea in women in all countries of sub-Saharan Africa. We assessed geographic and demographic differences in prevalence and incidence of infection; weighted mean prevalence estimates were calculated with a random-effect model. A total of 102 study results were included, with data available for 24/49 of sub-Saharan countries. The weighted prevalence of chlamydial infection was lower among women in community-based studies (3.9%; 95% CI: 2.9-5.1%) than for women recruited at primary healthcare facilities (6.0%; 95% CI: 4.2-8.4%, p < 0.001); the same was observed for gonorrhoea (2.2%; 95% CI: 1.2-4.0% vs. 4.2%; 95% CI: 3.2-5.6%, p < 0.001). Prevalence of Chlamydia among sex workers was 5.5% (95% CI: 4.2-7.3%) and gonorrhoea 7.6% (95% CI: 5.4-11%). Seven studies reported on incidence which varied between 0.75-28 and 2.8-17 per 100 person-years-at-risk for chlamydial infection and gonorrhoea, respectively. Only two studies reported on anal infections and one on oral infection. This overview underscores the considerable incidence and prevalence of genital C. trachomatis and N. gonorrhoeae in women in different settings in sub-Saharan Africa. Better control strategies are warranted to reduce the burden of infection and to prevent long-term complications of these infections.
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Affiliation(s)
- Jan Henk Dubbink
- 1 Anova Health Institute, Johannesburg, South Africa.,2 Department of Medical Microbiology & Infection Control, Laboratory of Immunogenetics, VU University Medical Center, Amsterdam, the Netherlands.,3 Faculty of Health, Medicine & Life Sciences, Department of Genetics and Cell Biology, Institute for Public Health Genomics (IPHG), Research School GROW (School for Oncology & Developmental Biology), University of Maastricht, Maastricht, the Netherlands
| | - Stephan P Verweij
- 2 Department of Medical Microbiology & Infection Control, Laboratory of Immunogenetics, VU University Medical Center, Amsterdam, the Netherlands
| | - Helen E Struthers
- 1 Anova Health Institute, Johannesburg, South Africa.,4 Division of Infectious Diseases & HIV Medicine, Department of Internal Medicine, University of Cape Town, Cape Town, South Africa
| | - Sander Ouburg
- 2 Department of Medical Microbiology & Infection Control, Laboratory of Immunogenetics, VU University Medical Center, Amsterdam, the Netherlands
| | - James A McIntyre
- 1 Anova Health Institute, Johannesburg, South Africa.,5 School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Servaas A Morré
- 2 Department of Medical Microbiology & Infection Control, Laboratory of Immunogenetics, VU University Medical Center, Amsterdam, the Netherlands.,3 Faculty of Health, Medicine & Life Sciences, Department of Genetics and Cell Biology, Institute for Public Health Genomics (IPHG), Research School GROW (School for Oncology & Developmental Biology), University of Maastricht, Maastricht, the Netherlands
| | - Remco Ph Peters
- 1 Anova Health Institute, Johannesburg, South Africa.,6 Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
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Rees H, Delany-Moretlwe S, Scorgie F, Luchters S, Chersich MF. At the Heart of the Problem: Health in Johannesburg's Inner-City. BMC Public Health 2017; 17:554. [PMID: 28832289 PMCID: PMC5498860 DOI: 10.1186/s12889-017-4344-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Helen Rees
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sinead Delany-Moretlwe
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Fiona Scorgie
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Stanley Luchters
- Burnet Institute, Melbourne, Australia
- Department of Epidemiology and Preventive Medicine, Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
- International Centre for Reproductive Health, Department of Urogynaecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Matthew F. Chersich
- Wits Reproductive Health and HIV Institute (WRHI), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Teclessou JN, Akakpo S, Gbetoglo D, Koumagnanou G, Singo A, Pitché P. HIV prevalence and behavioral studies among female sex workers in Togo in 2015. ACTA ACUST UNITED AC 2017; 110:270-275. [PMID: 28660604 DOI: 10.1007/s13149-017-0565-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 04/04/2017] [Indexed: 11/30/2022]
Abstract
The purpose of this study is to determine the seroprevalence of HIVamong female sex workers (FSWs) and to document the behavior in this target population four years after the last study and possibly readjust these interventions. We conducted from March 27 to April 4, 2015 a crosssectional study of 1197 FSWs. Behavior data were collected by interviewer-administered questionnaires. The FSWs were then subjected to blood tests to measure the prevalence of HIV. The average age of respondents FSWs was 28 years and 20% had their first sexual intercourse before 15 years old. Overall, 48% of the FSWs received between 1 and 7 customers per working day. The majority of FSWs (90%) had consistently used condoms during their last week of work. HIV seroprevalence was 11.7% for FSWs. HIV prevalence was higher in FSWs living in Lomé, the capital city, (13.4%) than those living in the Kara region, in the North of the country (2%), P < 0.0001. The results of this study show the positive behavioral change in FSWs with a stabilization of HIV prevalence in this group after four years.
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Affiliation(s)
- J N Teclessou
- Service de dermatologie et IST, CHU Sylvanus-Olympio, faculté des sciences de la santé, université de Lomé, Lomé, Togo
| | - S Akakpo
- Service de dermatologie et IST, CHU Sylvanus-Olympio, faculté des sciences de la santé, université de Lomé, Lomé, Togo
| | - D Gbetoglo
- Unité de recherche démographique, université de Lomé, Lomé, Togo
| | - G Koumagnanou
- Association togolaise pour le marketing social, Lomé, Togo
| | - A Singo
- Programme national de lutte contre le sida et les IST, ministère de la Santé, Santé, Togo
| | - P Pitché
- Service de dermatologie et IST, CHU Sylvanus-Olympio, faculté des sciences de la santé, université de Lomé, Lomé, Togo. .,Conseil national de lutte contre le sida et les IST (CNLS-IST), Lomé, Togo.
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Lion RR, Watt MH, Wechsberg WM, Meade CS. Gender and Sex Trading Among Active Methamphetamine Users in Cape Town, South Africa. Subst Use Misuse 2017; 52:773-784. [PMID: 28379107 PMCID: PMC5600888 DOI: 10.1080/10826084.2016.1264964] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND South Africa has experienced a tremendous rise in methamphetamine use since the year 2000. Sex trading is a global phenomenon that has been observed in active drug users and has been associated with risks for HIV infection and violence. OBJECTIVES This paper describes and examines the correlates of sex trading among active methamphetamine users in Cape Town, South Africa. METHODS Through peer referral, 360 (201 male; 159 female) active methamphetamine users were recruited in a peri-urban township. Demographics, sex trading, drug use, trauma, and mental health were assessed by a structured clinical interview and computer survey. Logistic regression models were used to examine predictors of sex trading for men and women. RESULTS In the past 3 months, 40% of men and 33% of women endorsed trading sex for methamphetamine or money. Among these, they reported trading with same sex partners (33%), high rates of inconsistent condom use (73%), and incidences of physical (23%) and sexual (27%) assault when sex trading. Increased drug use severity was correlated with sex trading. Women with experiences of violence and trauma were also more likely to trade sex. Conclusions/importance: The results stress a need for linkage to drug treatment, as addiction may be fueling sex trading. Targeted interventions geared towards safe sex practices may reduce risky sexual behaviors. Women need interventions that are attuned to their specific vulnerabilities. More research is needed to explore the experiences of men who have sex with men given their particularly high rates of sex trading behavior.
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Affiliation(s)
- Ryan R Lion
- a Duke Global Health Institute, Duke University , Durham , North Carolina , USA
| | - Melissa H Watt
- b Department of Psychiatry & Behavioral Science , Duke University School of Medicine , Durham , North Carolina , USA
| | - Wendee M Wechsberg
- c Substance Abuse Treatment Evaluations and Interventions, RTI International , Research Triangle Park , North Carolina , USA
| | - Christina S Meade
- a Duke Global Health Institute, Duke University , Durham , North Carolina , USA
- b Department of Psychiatry & Behavioral Science , Duke University School of Medicine , Durham , North Carolina , USA
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A study on HIV, Syphilis, and Hepatitis B and C virus infections among female sex workers in the Republic of Congo. ACTA ACUST UNITED AC 2017; 75:21. [PMID: 28503303 PMCID: PMC5421326 DOI: 10.1186/s13690-017-0189-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 03/20/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND Female Sex Workers (FSWs) are considered to be at high risk for transmission of Sexually Transmitted Infections (STIs) and are defined as a priority of the national HIV/AIDS response in the Republic of Congo (RoC). However, no data are available regarding STIs in this group. This study aimed to determine the prevalences of HIV, syphilis and hepatitis B and C among FSWs in five cities in the country. METHODS A cross-sectional study was conducted from November 2nd 2011 to May 15th 2012. Participants were recruited in Brazzaville, Pointe-Noire, Dolisie, Nkayi and Pokola using a respondent-driven sampling method. RESULTS A total of 805 FSWs were recruited with an average age of 28.31 ± 9.15 years. The overall prevalences of HIV, syphilis, HBV and HCV were 7.50%, 2.20%, 4.20% and 0.70%, respectively. The age groups 35-39 (20.51% [0%-36.93%], p = 0.0057) and greater than 40 years (16.67% [0%-34.93%], P = 0.016) were positively associated with behaviors at high risk of HIV infection. For syphilis, the most infected age group was the one greater than 40 years, at 6.25% ([1.06% -72.37%] p = 0.04). Pointe-Noire was the most infected city for syphilis and HBV, with 5.15% (p = 0.0061) and 4.22% (p˂0.001), respectively. No risk factors were associated with HCV infection. FSWs practicing in mobile prostitution sites had a significantly higher infection rate (2.1% [0%-11.09%] p = 0.04). CONCLUSION This study shows that the prevalence of HIV and other STIs in FSWs is high. Therefore, a combination of individual and structural interventions could reduce the risk of an STI "reservoir" among this population.
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Owen BN, Elmes J, Silhol R, Dang Q, McGowan I, Shacklett B, Swann EM, van der Straten A, Baggaley RF, Boily MC. How common and frequent is heterosexual anal intercourse among South Africans? A systematic review and meta-analysis. J Int AIDS Soc 2017; 19:21162. [PMID: 28364565 PMCID: PMC5461120 DOI: 10.7448/ias.20.1.21162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 12/15/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND HIV is transmitted more effectively during anal intercourse (AI) than vaginal intercourse (VI). However, patterns of heterosexual AI practice and its contribution to South Africa's generalized epidemic remain unclear. We aimed to determine how common and frequent heterosexual AI is in South Africa. METHODS We searched for studies reporting the proportion practising heterosexual AI (prevalence) and/or the number of AI and unprotected AI (UAI) acts (frequency) in South Africa from 1990 to 2015. Stratified random-effects meta-analysis by sub-groups was used to produce pooled estimates and assess the influence of participant and study characteristics on AI prevalence. We also estimated the fraction of all sex acts which were AI or UAI and compared condom use during VI and AI. RESULTS Of 41 included studies, 31 reported on AI prevalence and 14 on frequency, over various recall periods. AI prevalence was high across different recall periods for sexually active general-risk populations (e.g. lifetime = 18.4% [95%CI:9.4-27.5%], three-month = 20.3% [6.1-34.7%]), but tended to be even higher in higher-risk populations such as STI patients and female sex workers (e.g. lifetime = 23.2% [0.0-47.4%], recall period not stated = 40.1% [36.2-44.0%]). Prevalence was higher in studies using more confidential interview methods. Among general and higher-risk populations, 1.2-40.0% and 0.7-21.0% of all unprotected sex acts were UAI, respectively. AI acts were as likely to be condom protected as vaginal acts. CONCLUSION Reported heterosexual AI is common but variable among South Africans. Nationally and regionally representative sexual behaviour studies that use standardized recall periods and confidential interview methods, to aid comparison across studies and minimize reporting bias, are needed. Such data could be used to estimate the extent to which AI contributes to South Africa's HIV epidemic.
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Affiliation(s)
- Branwen N. Owen
- Department of Infectious Disease Epidemiology, Imperial College London, London, UK
| | - Jocelyn Elmes
- Department of Infectious Disease Epidemiology, Imperial College London, London, UK
| | - Romain Silhol
- Department of Infectious Disease Epidemiology, Imperial College London, London, UK
| | - Que Dang
- Vaccine Clinical Research Branch, Division of AIDS, National Institutes of Allergy and Infectious Diseases, US National Institutes of Health, Bethesda, MD, USA
| | - Ian McGowan
- Department of Medicine, University of Pittsburgh School of Medicine, Pennsylvania, UK
| | - Barbara Shacklett
- Department of Medical Microbiology and Immunology, University of California, Davis, CA, USA
| | - Edith M. Swann
- Vaccine Clinical Research Branch, Division of AIDS, National Institutes of Allergy and Infectious Diseases, US National Institutes of Health, Bethesda, MD, USA
| | | | - Rebecca F. Baggaley
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Marie-Claude Boily
- Department of Infectious Disease Epidemiology, Imperial College London, London, UK
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Gomez GB, Eakle R, Mbogua J, Akpomiemie G, Venter WDF, Rees H. Treatment And Prevention for female Sex workers in South Africa: protocol for the TAPS Demonstration Project. BMJ Open 2016; 6:e011595. [PMID: 27678533 PMCID: PMC5051507 DOI: 10.1136/bmjopen-2016-011595] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Updated guidelines from the WHO recommend antiretroviral treatment for adults with HIV at any CD4 count and daily oral pre-exposure prophylaxis (PrEP) for people at substantial risk of HIV infection. However, implementation challenges may hinder the ability of programmes to translate these recommendations into successful practice. This demonstration project is the first to integrate PrEP and immediate treatment (ITx) for female sex workers (FSWs) in South Africa to answer operational research questions. METHODS AND ANALYSIS This is a prospective cohort study where the main outcome is retention at 12 months. The study population is recruited into two arms across two urban sites: (1) PrEP for HIV-negative FSWs (n=400) and (2) ITx for HIV-positive FSWs with CD4 greater than national guidelines (n=300). We investigate process and other health indicators, uptake and use of PrEP and ITx through qualitative research, and evaluate cost-effectiveness analysis combined with estimates of impact through epidemiological modelling. ETHICS AND DISSEMINATION The Treatment And Prevention for female Sex workers in South Africa (TAPS) Project was designed as an implementation study before emtricitabine/tenofovir disoproxil fumarate was licenced as an indication for PrEP in South Africa. Therefore, clinical trial requirements for ethical and South African Medicines Control Council approvals were followed. Results will be disseminated to participants, local health officials and other stakeholders, as well as in peer-reviewed journals and at conferences.
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Affiliation(s)
- Gabriela B Gomez
- Wits Reproductive Health and HIV Institute, Johannesburg, South Africa
- Department of Global Health and Amsterdam, Institute for Global Health and Development, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Robyn Eakle
- Wits Reproductive Health and HIV Institute, London School of Hygiene and Tropical Medicine, London, UK
| | - Judie Mbogua
- Wits Reproductive Health and HIV Institute, Johannesburg, South Africa
| | | | | | - Helen Rees
- Wits Reproductive Health and HIV Institute, Johannesburg, South Africa
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Carney T, Petersen Williams PM, Plüddemann A, Parry CDH. Sexual HIV risk among substance-using female commercial sex workers in Durban, South Africa. AJAR-AFRICAN JOURNAL OF AIDS RESEARCH 2016. [PMID: 26223332 DOI: 10.2989/16085906.2015.1040811] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study examined data collected from a sample of female sex workers (FSWs) during the first two years of a brief risk-reduction intervention for vulnerable populations that focused on substance use and HIV risk-related behaviours (2007-2009) as part of a rapid assessment and response evaluation study. In 2007, in collaboration with a local non-governmental organisation (NGO), an initiative was begun to roll out targeted harm reduction strategies for drug-using street based FSWs in Durban, South Africa. Data were collected on demographic characteristics, substance use and HIV risk behaviours to tailor these harm reduction strategies with participants. Over the first two years of the intervention, data were collected from 646 FSWs: 428 who reported being at low risk for HIV and 218 who reported being at high risk for HIV (defined as engaging in unprotected sex with sexual partners in the past 90 days). FSWs who had previously been diagnosed with HIV or a sexually transmitted disease (STD) were significantly less likely to report engaging in unprotected sex. Those who used over-the-counter or prescription (OTC/PRE) drugs reported engaging in unprotected sex significantly more often than FSWs who did not use these substances, while those who used heroin were less likely to report unprotected sex. The findings are encouraging in that those who are aware of their HIV status are less likely to engage in risky sexual behaviour, and therefore HIV testing and counselling is recommended. It indicates the need to identify strategies to encourage the likelihood of all FSWs, particularly those who are HIV-positive, to use condoms. It also encourages further research to investigate specific substances as possible predictors of high risk behaviours in high-risk populations of sex workers.
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Affiliation(s)
- Tara Carney
- a Alcohol and Drug Abuse Research Unit , Medical Research Council , Tygerberg , South Africa
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Le TT, Nguyen QC, Tran HT, Schwandt M, Lim HJ. Correlates of HIV infection among street-based and venue-based sex workers in Vietnam. Int J STD AIDS 2015; 27:1093-1103. [PMID: 26424161 DOI: 10.1177/0956462415608556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 09/01/2015] [Indexed: 11/17/2022]
Abstract
Commercial sex work is one of the driving forces of the HIV epidemic across the world. In Vietnam, although female sex workers (FSWs) carry a disproportionate burden of HIV, little is known about the risk profile and associated factors for HIV infection among this population. There is a need for large-scale research to obtain reliable and representative estimates of the measures of association. This study involved secondary data analysis of the 'HIV/STI Integrated Biological and Behavioral Surveillance' study in Vietnam in 2009-2010 to examine the correlates of HIV among FSWs. Data collected from 5298 FSWs, including 2530 street-based sex workers and 2768 venue-based sex workers from 10 provinces in Vietnam, were analyzed using descriptive statistics and bivariate and multivariate logistic regression analyses. HIV prevalence among the overall FSW population was 8.6% (n = 453). However, when stratified by FSW subpopulations, HIV prevalence was 10.6% (n = 267) for street-based sex workers and 6.7% (n = 186) for venue-based sex workers. Factors independently associated with HIV infection in the multivariate analysis, regardless of sex work types, were injecting drug use, high self-perceived HIV risk, and age ≥ 25 years. Additional factors independently associated with HIV risk within each FSW subpopulation included having ever been married among street-based sex workers and inconsistent condom use with clients and having sex partners who injected drugs among venue-based sex workers. Apart from strategies addressing modifiable risk behaviours among all FSWs, targeted strategies to address specific risk behaviours within each FSW subpopulation should be adopted.
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Affiliation(s)
- Thuy Tc Le
- Department of Community Health and Epidemiology, College of Medicine University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | | | | | - Michael Schwandt
- Department of Community Health and Epidemiology, College of Medicine University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Hyun J Lim
- Department of Community Health and Epidemiology, College of Medicine University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Bekker LG, Johnson L, Cowan F, Overs C, Besada D, Hillier S, Cates W. Combination HIV prevention for female sex workers: what is the evidence? Lancet 2015; 385:72-87. [PMID: 25059942 PMCID: PMC10318470 DOI: 10.1016/s0140-6736(14)60974-0] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Sex work occurs in many forms and sex workers of all genders have been affected by HIV epidemics worldwide. The determinants of HIV risk associated with sex work occur at several levels, including individual biological and behavioural, dyadic and network, and community and social environmental levels. Evidence indicates that effective HIV prevention packages for sex workers should include combinations of biomedical, behavioural, and structural interventions tailored to local contexts, and be led and implemented by sex worker communities. A model simulation based on the South African heterosexual epidemic suggests that condom promotion and distribution programmes in South Africa have already reduced HIV incidence in sex workers and their clients by more than 70%. Under optimistic model assumptions, oral pre-exposure prophylaxis together with test and treat programmes could further reduce HIV incidence in South African sex workers and their clients by up to 40% over a 10-year period. Combining these biomedical approaches with a prevention package, including behavioural and structural components as part of a community-driven approach, will help to reduce HIV infection in sex workers in different settings worldwide.
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Affiliation(s)
- Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Republic of South Africa.
| | - Leigh Johnson
- Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Republic of South Africa
| | - Frances Cowan
- Research Department of Infection and Population Health, University College London, London, UK; Centre for Sexual Health and HIV/AIDS Research (CeSHHAR) Zimbabwe, Harare, Zimbabwe
| | - Cheryl Overs
- Michael Kirby Centre for Public Health and Human Rights, Melbourne, Australia
| | - Donela Besada
- The Desmond Tutu HIV Foundation, Cape Town, Republic of South Africa
| | - Sharon Hillier
- University of Pittsburgh Department of Obstetrics, Gynecology and Reproductive Sciences, Pittsburgh, PA, USA
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Moore L, Chersich MF, Steen R, Reza-Paul S, Dhana A, Vuylsteke B, Lafort Y, Scorgie F. Community empowerment and involvement of female sex workers in targeted sexual and reproductive health interventions in Africa: a systematic review. Global Health 2014; 10:47. [PMID: 24916108 PMCID: PMC4074148 DOI: 10.1186/1744-8603-10-47] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 03/25/2014] [Indexed: 11/10/2022] Open
Abstract
Background Female sex workers (FSWs) experience high levels of sexual and reproductive health (SRH) morbidity, violence and discrimination. Successful SRH interventions for FSWs in India and elsewhere have long prioritised community mobilisation and structural interventions, yet little is known about similar approaches in African settings. We systematically reviewed community empowerment processes within FSW SRH projects in Africa, and assessed them using a framework developed by Ashodaya, an Indian sex worker organisation. Methods In November 2012 we searched Medline and Web of Science for studies of FSW health services in Africa, and consulted experts and websites of international organisations. Titles and abstracts were screened to identify studies describing relevant services, using a broad definition of empowerment. Data were extracted on service-delivery models and degree of FSW involvement, and analysed with reference to a four-stage framework developed by Ashodaya. This conceptualises community empowerment as progressing from (1) initial engagement with the sex worker community, to (2) community involvement in targeted activities, to (3) ownership, and finally, (4) sustainability of action beyond the community. Results Of 5413 articles screened, 129 were included, describing 42 projects. Targeted services in FSW ‘hotspots’ were generally isolated and limited in coverage and scope, mostly offering only free condoms and STI treatment. Many services were provided as part of research activities and offered via a clinic with associated community outreach. Empowerment processes were usually limited to peer-education (stage 2 of framework). Community mobilisation as an activity in its own right was rarely documented and while most projects successfully engaged communities, few progressed to involvement, community ownership or sustainability. Only a few interventions had evolved to facilitate collective action through formal democratic structures (stage 3). These reported improved sexual negotiating power and community solidarity, and positive behavioural and clinical outcomes. Sustainability of many projects was weakened by disunity within transient communities, variable commitment of programmers, low human resource capacity and general resource limitations. Conclusions Most FSW SRH projects in Africa implemented participatory processes consistent with only the earliest stages of community empowerment, although isolated projects demonstrate proof of concept for successful empowerment interventions in African settings.
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Affiliation(s)
- Lizzie Moore
- MatCH (Maternal, Adolescent and Child Health), Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand, Durban, South Africa.
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McCormick AW, Abuelezam NN, Rhode ER, Hou T, Walensky RP, Pei PP, Becker JE, DiLorenzo MA, Losina E, Freedberg KA, Lipsitch M, Seage GR. Development, calibration and performance of an HIV transmission model incorporating natural history and behavioral patterns: application in South Africa. PLoS One 2014; 9:e98272. [PMID: 24867402 PMCID: PMC4035281 DOI: 10.1371/journal.pone.0098272] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 04/28/2014] [Indexed: 11/19/2022] Open
Abstract
Understanding HIV transmission dynamics is critical to estimating the potential population-wide impact of HIV prevention and treatment interventions. We developed an individual-based simulation model of the heterosexual HIV epidemic in South Africa and linked it to the previously published Cost-Effectiveness of Preventing AIDS Complications (CEPAC) International Model, which simulates the natural history and treatment of HIV. In this new model, the CEPAC Dynamic Model (CDM), the probability of HIV transmission per sexual encounter between short-term, long-term and commercial sex worker partners depends upon the HIV RNA and disease stage of the infected partner, condom use, and the circumcision status of the uninfected male partner. We included behavioral, demographic and biological values in the CDM and calibrated to HIV prevalence in South Africa pre-antiretroviral therapy. Using a multi-step fitting procedure based on Bayesian melding methodology, we performed 264,225 simulations of the HIV epidemic in South Africa and identified 3,750 parameter sets that created an epidemic and had behavioral characteristics representative of a South African population pre-ART. Of these parameter sets, 564 contributed 90% of the likelihood weight to the fit, and closely reproduced the UNAIDS HIV prevalence curve in South Africa from 1990–2002. The calibration was sensitive to changes in the rate of formation of short-duration partnerships and to the partnership acquisition rate among high-risk individuals, both of which impacted concurrency. Runs that closely fit to historical HIV prevalence reflect diverse ranges for individual parameter values and predict a wide range of possible steady-state prevalence in the absence of interventions, illustrating the value of the calibration procedure and utility of the model for evaluating interventions. This model, which includes detailed behavioral patterns and HIV natural history, closely fits HIV prevalence estimates.
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Affiliation(s)
- Alethea W. McCormick
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- * E-mail:
| | - Nadia N. Abuelezam
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Erin R. Rhode
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Taige Hou
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Rochelle P. Walensky
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, Massachusetts, United States of America
- Center for AIDS Research, Harvard University, Boston, Massachusetts, United States of America
| | - Pamela P. Pei
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Jessica E. Becker
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Madeline A. DiLorenzo
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Elena Losina
- Departments of Biostatistics and Epidemiology, Boston University School of Public Health, Boston, Massachusetts, United States of America
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts, United States of America
| | - Kenneth A. Freedberg
- Divisions of General Medicine and Infectious Disease and the Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Center for AIDS Research, Harvard University, Boston, Massachusetts, United States of America
- Department of Health Policy and Management, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Marc Lipsitch
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Center for Communicable Disease Dynamics and Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - George R. Seage
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
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Terris-Prestholt F, Foss AM, Cox AP, Heise L, Meyer-Rath G, Delany-Moretlwe S, Mertenskoetter T, Rees H, Vickerman P, Watts CH. Cost-effectiveness of tenofovir gel in urban South Africa: model projections of HIV impact and threshold product prices. BMC Infect Dis 2014; 14:14. [PMID: 24405719 PMCID: PMC3899035 DOI: 10.1186/1471-2334-14-14] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 12/24/2013] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND There is urgent need for effective HIV prevention methods that women can initiate. The CAPRISA 004 trial showed that a tenofovir-based vaginal microbicide had significant impact on HIV incidence among women. This study uses the trial findings to estimate the population-level impact of the gel on HIV and HSV-2 transmission, and price thresholds at which widespread product introduction would be as cost-effective as male circumcision in urban South Africa. METHODS The estimated 'per sex-act' HIV and HSV-2 efficacies were imputed from CAPRISA 004. A dynamic HIV/STI transmission model, parameterised and fitted to Gauteng (HIV prevalence of 16.9% in 2008), South Africa, was used to estimate the impact of gel use over 15 years. Uptake was assumed to increase linearly to 30% over 10 years, with gel use in 72% of sex-acts. Full economic programme and averted HIV treatment costs were modelled. Cost per DALY averted is estimated and a microbicide price that equalises its cost-effectiveness to that of male circumcision is estimated. RESULTS Using plausible assumptions about product introduction, we predict that tenofovir gel use could lead to a 12.5% and 4.9% reduction in HIV and HSV-2 incidence respectively, by year 15. Microbicide introduction is predicted to be highly cost-effective (under $300 per DALY averted), though the dose price would need to be just $0.12 to be equally cost-effective as male circumcision. A single dose or highly effective (83% HIV efficacy per sex-act) regimen would allow for more realistic threshold prices ($0.25 and $0.33 per dose, respectively). CONCLUSIONS These findings show that an effective coitally-dependent microbicide could reduce HIV incidence by 12.5% in this setting, if current condom use is maintained. For microbicides to be in the range of the most cost-effective HIV prevention interventions, product costs will need to decrease substantially.
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Zembe YZ, Townsend L, Thorson A, Ekström AM. Predictors of inconsistent condom use among a hard to reach population of young women with multiple sexual partners in peri-urban South Africa. PLoS One 2012; 7:e51998. [PMID: 23284847 PMCID: PMC3527429 DOI: 10.1371/journal.pone.0051998] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 11/08/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Evidence suggests that multiple concurrent sexual partnering may be a key driver of the high HIV prevalence among young women in South Africa. However, little is known about whether and to what extent women who have multiple sexual partners also engage in other high risk sexual behaviors such as inconsistent condom use. And yet, multiple concurrent sexual partnering is of little epidemiological relevance if all partners in these sexual networks use condoms consistently. This study assesses the prevalence of sexual risk behaviors and HIV, and predictors of inconsistent condom use among women aged 16-24 with multiple sexual partners in a peri-urban setting in South Africa. METHODS We used Respondent Driven Sampling, a sampling strategy for hard-to-reach populations to recruit 259 women aged 16-24 in a bio-behavioral cross-sectional survey in the Western Cape province. Estimates of population proportions and 95% confidence intervals (CIs) were calculated using the Respondent-Driven Sampling Analysis Tool 5.6 (RDSAT). The primary outcome was inconsistent condom use in the past three months. RESULTS Young women reported an average of 7 partners in the past 3 months and a high prevalence of sexual risk behaviors: concurrency (87%), transactional sex (91%) and age mixing (59%). Having >5 sexual partners in the last 3 months doubled the risk of unprotected sex (OR 2.43, CI 1.39-4.25). HIV prevalence was 4% among 16-19 year olds, increasing threefold (12%) at age 20-24. DISCUSSION Multiple sexual partnering, where a high number of partners are acquired in a short space of time, is a fertile context for unprotected and risky sexual behavior. The young women featured in this survey present with a constellation of high-risk sexual behaviors that cluster to form a risk syndrome. Carefully tailored repeat bio-behavioral surveillance surveys are recommended for this sub-population.
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Affiliation(s)
- Yanga Z Zembe
- Health Systems Research Unit, Medical Research Council of South Africa, Cape Town, South Africa.
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Scorgie F, Chersich MF, Ntaganira I, Gerbase A, Lule F, Lo YR. Socio-demographic characteristics and behavioral risk factors of female sex workers in sub-saharan Africa: a systematic review. AIDS Behav 2012; 16:920-33. [PMID: 21750918 DOI: 10.1007/s10461-011-9985-z] [Citation(s) in RCA: 189] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sex work remains an important contributor to HIV transmission within early, advanced and regressing epidemics in sub-Saharan Africa, but its social and behavioral underpinnings remain poorly understood, limiting the impact of HIV prevention initiatives. This article systematically reviews the socio-demographics of female sex workers (FSW) in this region, their occupational contexts and key behavioral risk factors for HIV. In total 128 relevant articles were reviewed following a search of Medline, Web of Science and Anthropological Index. FSW commonly have limited economic options, many dependents, marital disruption, and low education. Their vulnerability to HIV, heightened among young women, is inextricably linked to the occupational contexts of their work, characterized most commonly by poverty, endemic violence, criminalization, high mobility and hazardous alcohol use. These, in turn, predict behaviors such as low condom use, anal sex and co-infection with other sexually transmitted infections. Sex work in Africa cannot be viewed in isolation from other HIV-risk behaviors such as multiple concurrent partnerships-there is often much overlap between sexual networks. High turn-over of FSW, with sex work duration typically around 3 years, further heightens risk of HIV acquisition and transmission. Targeted services at sufficiently high coverage, taking into account the behavioral and social vulnerabilities described here, are urgently required to address the disproportionate burden of HIV carried by FSW on the continent.
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Affiliation(s)
- Fiona Scorgie
- Maternal, Adolescent and Child Health, Department of Obstetrics and Gynaecology, University of the Witwatersrand, Johannesburg, Durban, South Africa.
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Distribution of sexually transmitted diseases and risk factors by work locations among female sex workers in Tijuana, Mexico. Sex Transm Dis 2011; 37:608-14. [PMID: 20585278 DOI: 10.1097/olq.0b013e3181deaa0f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sex work is regulated in the Zona Roja (red light district) in Tijuana, Mexico, where HIV and sexually transmitted disease (STD) prevalence is high among female sex workers (FSWs). We examined the spatial distribution of STDs by work venue among FSWs in Tijuana. METHODS FSWs aged 18 years and older who reported unprotected sex with ≥ 1 client in the past 2 months underwent testing for HIV, syphilis, gonorrhea, and Chlamydia. HIV/STDs were mapped by venue (i.e., bar, hotel) and Getis-Ord Gi statistics were used to identify geographic hotspots. High-risk venues were then identified using a standardized STD ratio (high risk defined as a ratio ≥ 1.25). Logistic regression was used to assess correlates of working at a high risk venue. RESULTS Of 474 FSWs, 176 (36.4%) had at least 1 bacterial sexually transmitted infection (STI); 36 (7.6%) were HIV-positive. Within the Zona Roja, 1 venue was identified as a geographic "hotspot," with a higher than expected number of HIV/STD-positive FSW (P < 0.05) as compared to neighboring venues. Using the STD ratio definition, 11 venues were identified as high-risk; FSWs working in these locations had higher education, were more likely to report always using drugs with sex, and having mostly US clients. They were less likely to be registered FSWs or to live at their work venue. CONCLUSIONS A relatively few number of sex work venues accounted for a large proportion of the HIV/STI burden among FSWs in Tijuana. Structural interventions that focus on sex work venues could help increase STI diagnosis, prevention, and treatment among FSWs in Tijuana.
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Hedden SL, Hulbert A, Cavanaugh CE, Parry CD, Moleko AG, Latimer WW. Alcohol, Drug and Sexual Risk Behavior Correlates of Recent Transactional Sex Among Female Black South African Drug Users. JOURNAL OF SUBSTANCE USE 2010; 16:57-67. [PMID: 21603063 DOI: 10.3109/14659891003721141] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Transactional sex among black South African women has become a mode of economic survival putting them at higher risk for HIV and other infectious disease. In order to inform HIV interventions, drug and sexual risk behavior correlates of recent transactional sex among a descriptive epidemiological, cross-sectional sample of 189, black, South African women in Pretoria were examined using log binomial regression. Prevalence of HIV seropositivity was extremely high among non-transactional sex workers (47.1%) and transactional sex workers (54.6%), albeit not significantly different. Adjusted regression results indicated that the probability of transactional sex was greater for drug using women who tested positive for cocaine use (Adjusted Prevalence Ratio (APR)=1.3, 95% CI=1.1, 1.5) and knew of anyone who died of AIDS (APR =1.5, 95% CI 1.1, 2.1). The probability of transactional sex was lower for female drug users who reported greater education (APR =0.6, 95% CI= 0.4, 0.8), condom use in their first sexual encounter (APR =0.7, 95% CI=0.6, 1.0) or reported a recent steady sexual partnership (APR =0.8, 95% CI=0.7, 0.9). Drug use-related interventions for female transactional sex workers may need to focus on methods for the reduction of not only drug use, especially cocaine use, but also the reduction of sexual risk behaviors.
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Affiliation(s)
- Sarra L Hedden
- Johns Hopkins Bloomberg School of Public Health, Department of Mental Health, 2213 McElderry St., Baltimore, MD, 21205, USA
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Floyd LJ, Hedden S, Lawson A, Salama C, Moleko AG, Latimer W. The association between poly-substance use, coping, and sex trade among black South African substance users. Subst Use Misuse 2010; 45:1971-87. [PMID: 20438343 PMCID: PMC6414046 DOI: 10.3109/10826081003767635] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The current study examined the relationship between poly-substance use and sex trade among 343 black South African substance users recruited from the Pretoria region between 2002 and 2006 (57% males; mean age 24 years). The assessment comprised a HIV-risk behavior interview, urinalysis to confirm self-report of drug use, and an HIV test. Logistic regression analyses indicated poly-substance use was positively associated with sex trade among persons using drugs to cope with stress. Results indicate the importance of considering coping strategies as modifiable psychosocial factor related to sexual risk-taking behaviors and substance use. The study's implications and limitations are discussed.
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Affiliation(s)
- Leah J Floyd
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA.
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Pascom ARP, Szwarcwald CL, Júnior AB. Sampling studies to estimate the HIV prevalence rate in female commercial sex workers. Braz J Infect Dis 2010. [DOI: 10.1016/s1413-8670(10)70081-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Parry CDH, Dewing S, Petersen P, Carney T, Needle R, Kroeger K, Treger L. Rapid assessment of HIV risk behavior in drug using sex workers in three cities in South Africa. AIDS Behav 2009; 13:849-59. [PMID: 18324470 DOI: 10.1007/s10461-008-9367-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Accepted: 02/14/2008] [Indexed: 11/27/2022]
Abstract
A rapid assessment was undertaken with drug using commercial sex workers (CSWs) to investigate practices putting them at risk for contracting HIV. It included key informant (KI) (N = 67) and focus group (N = 10) interviews in locations with a high prevalence of drug use in Cape Town, Durban and Pretoria, South Africa. HIV testing of KIs was conducted. Cocaine, Ecstasy, heroin and methaqualone are used by CSWs prior to, during and after sex. Drugs enhance the sexual experience and prolong sex sessions. Interviews revealed inconsistent condom use among CSWs together with other risky sexual practices such as needle sharing. Among CSWs who agreed to HIV testing, 34% tested positive. Barriers to accessing drug treatment and HIV treatment and preventive services were identified. Interventions recognizing the role of drug abuse in HIV transmission should be prioritized, and issues of access to services, stigma and power relations must be considered.
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Muench DF, Kuch DJ, Wu H, Begum AA, Veit SJ, Pelletier ME, Soler-García AA, Jerse AE. Hydrogen peroxide-producing lactobacilli inhibit gonococci in vitro but not during experimental genital tract infection. J Infect Dis 2009; 199:1369-78. [PMID: 19301977 DOI: 10.1086/597390] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Commensal lactobacilli that produce hydrogen peroxide (H(2)O(2)) inhibit Neisseria gonorrhoeae in vitro, and clinical data suggest that they are associated with a reduced risk of gonorrhea. We precolonized mice with Lactobacillus crispatus and then challenged them with N. gonorrhoeae, to measure the effects of H(2)O(2)-producing lactobacilli on gonococcal infection. We found no difference in the duration of infection or the number of gonococci recovered from untreated mice and mice colonized with L. crispatus. A gonococcal catalase mutant and a catalase, cytochrome C peroxidase mutant exhibited greater susceptibility to L. crispatus in vitro than did wild-type bacteria; however, recovery of these mutants from mice was not affected by L. crispatus. We also found no evidence that utilization of lactobacillus-produced lactate by N. gonorrhoeae balances the detrimental effects of H(2)O(2) during infection. We conclude that the association between lactobacilli and gonococci is complex and may be subject to factors that have not been reproduced in vitro.
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Affiliation(s)
- Dawn F Muench
- Department of Microbiology and Immunology, F Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
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Bärnighausen T, Hosegood V, Timaeus IM, Newell ML. The socioeconomic determinants of HIV incidence: evidence from a longitudinal, population-based study in rural South Africa. AIDS 2007; 21 Suppl 7:S29-38. [PMID: 18040162 PMCID: PMC2847257 DOI: 10.1097/01.aids.0000300533.59483.95] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Knowledge of the effect of socioeconomic status on HIV infection in Africa stems largely from cross-sectional studies. Cross-sectional studies suffer from two important limitations: two-way causality between socioeconomic status and HIV serostatus and simultaneous effects of socioeconomic status on HIV incidence and HIV-positive survival time. Both problems are avoided in longitudinal cohort studies. METHODS We used data from a longitudinal HIV surveillance and a linked demographic surveillance in a poor rural community in KwaZulu-Natal, South Africa, to investigate the effect of three measures of socioeconomic status on HIV incidence: educational attainment, household wealth categories (based on a ranking of households on an assets index scale) and per capita household expenditure. Our sample comprised of 3325 individuals who tested HIV-negative at baseline and either HIV-negative or -positive on a second test (on average 1.3 years later). RESULTS In multivariable survival analysis, one additional year of education reduced the hazard of acquiring HIV by 7% (P = 0.017) net of sex, age, wealth, household expenditure, rural vs. urban/periurban residence, migration status and partnership status. Holding other factors equal, members of households that fell into the middle 40% of relative wealth had a 72% higher hazard of HIV acquisition than members of the 40% poorest households (P = 0.012). Per capita household expenditure did not significantly affect HIV incidence (P = 0.669). CONCLUSION Although poverty reduction is important for obvious reasons, it may not be as effective as anticipated in reducing the spread of HIV in rural South Africa. In contrast, our results suggest that increasing educational attainment in the general population may lower HIV incidence.
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Affiliation(s)
- Till Bärnighausen
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa.
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Dunkle KL, Jewkes RK, Brown HC, Gray GE, McIntryre JA, Harlow SD. Transactional sex among women in Soweto, South Africa: prevalence, risk factors and association with HIV infection. Soc Sci Med 2004; 59:1581-92. [PMID: 15279917 DOI: 10.1016/j.socscimed.2004.02.003] [Citation(s) in RCA: 336] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Sex workers have long been considered a high-risk group for HIV infection, but to date little quantitative research has explored the association between HIV risk and exchange of sex for material gain by women in the general population. The objective of this study was to estimate the prevalence of such transactional sex among women attending antenatal clinics in Soweto, South Africa, to identify demographic and social variables associated with reporting transactional sex, and to determine the association between transactional sex and HIV serostatus. We conducted a cross-sectional study of women seeking antenatal care in four Soweto health centres who accepted routine antenatal HIV testing. Private face-to-face interviews covered socio-demographics, sexual history and experience of gender-based violence. 21.1% of participants reported having ever had sex with a non-primary male partner in exchange for material goods or money. Women who reported past experience of violence by male intimate partners, problematic substance use, urban residence, ever earning money, or living in substandard housing were more likely to report transactional sex, while women who reported delayed first coitus, were married, or had a post-secondary education were less likely to report transactional sex. Transactional sex was associated with HIV seropositivity after controlling for lifetime number of male sex partners and length of time a woman had been sexually active (OR = 1.54, 95% CI: 1.07, 2.21). Women who reported non-primary partners without transactional sex did not have increased odds of being HIV seropositive (OR = 1.04, 95% CI: 0.75, 1.43). We conclude that transactional sex may place women at increased risk for HIV, and is associated with gender-based violence, substance use and socio-economic disadvantage. Research, policy and programmatic initiatives should consider the role of transactional sex in women's HIV risk, with attention to the intersecting roles of violence, poverty, and substance use in shaping women's sexual behaviour.
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Affiliation(s)
- Kristin L Dunkle
- Department of Epidemiology, University of Michigan, 611 Church Street, Ann Arbor, MI 48109-3028, USA.
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