Sexual partnership concurrency and age disparities associated with sexually transmitted infection and risk behavior in rural communities in Kenya and Uganda

A pilot cluster randomized controlled trial assessing uptake of PrEP and contraception in hair salons in South Africa

BACKGROUND

Women in South Africa have a high burden of HIV infections, STIs, and unintended pregnancies. Women congregate regularly in hair salons, which may be useful venues for HIV and sexual and reproductive health (SRH) services. Our objective was to assess the uptake of PrEP and contraception in hair salons in South Africa.

METHODS

We conducted a pilot cluster randomized controlled trial to evaluate uptake of a hair stylist-initiated, nurse-supported intervention offering a dynamic choice of contraception (oral or injectable), STI testing and treatment, and oral PrEP in 3 salons in urban KwaZulu-Natal. Rapid HIV testing was performed in a private area at enrollment and each PrEP dispensing. Women could receive contraception and/or oral PrEP at the initial visit or opt in at a later visit. We defined uptake as the proportion of eligible women who accepted salon-based PrEP and/or salon-based contraception at any visit. Control salon participants completed surveys and were referred to clinic. We assessed predictors of PrEP uptake among intervention participants using univariate logistic regression and multivariable logistic regression with age and potential predictors from the univariate analyses.

RESULTS

Among 134 participants in intervention salons, the median age was 26 years (IQR 22-29). 75% reported visiting the salon at least every 2 months. 27% were using hormonal contraception at enrollment, 31% reported a self-perceived moderate or great chance of getting HIV in the next year, 33% thought their primary sex partner had other partners, 65% did not use condoms in the past month, and 11% reported intimate partner violence (IPV). About half (49%) accepted salon-based PrEP, and 89% accepted salon-based contraception during the study. Adjusting for age, uptake of salon-based PrEP was associated with experiencing IPV (aOR 4.20, 95%CI: 1.02, 17.36).

CONCLUSIONS

When offering a dynamic choice of integrated SRH services in urban hair salons in South Africa, we reached young women with risk factors for HIV, STIs, and unintended pregnancies. Hair salons are a novel venue for reaching young women who may not perceive themselves at risk for HIV, STIs, and unintended pregnancies.

TRIAL REGISTRATION

Clinicaltrials.gov identifier: NCT04222504. Registered 01-08-2020.

Sexually transmitted infections in sexually abused children: an audit project to implement PCR tests in a child advocacy center in Türkiye

BACKGROUND

Sexual abuse in children can sometimes result in sexually transmitted infections (STIs), which can serve as crucial forensic evidence. Although PCR methods are now accepted as the gold standard for STI screening, they have not yet widely replaced traditional culture methods in Türkiye. This study aims to assess the necessity of implementing PCR-based STI testing at Child Advocacy Centers in Türkiye, where such testing is not routinely available.

METHODS

Conducted between February and November 2023, this study included children who presented to the Child Advocacy Center of Marmara University Pendik Training and Research Hospital. High-risk victims were identified based on criteria including a history of penetrative sexual abuse and factors such as multiple perpetrators or significant age disparity. Serological tests and genital swabs were collected and analyzed using both bacterial culture methods and a comprehensive STI PCR panel.

RESULTS

The study included 20 victims, with a median age of 16 years. STI PCR testing detected pathogens in 19 out of 21 samples, including Chlamydia trachomatis (20%) and Neisseria gonorrhoeae (5%). In contrast, culture methods identified no sexually transmitted pathogens.

CONCLUSION

PCR testing demonstrated significantly higher sensitivity for detecting STIs compared to traditional bacterial culture methods, as expected. Implementing PCR-based STI testing in Child Advocacy Centers is an urgent and essential need for providing an accurate diagnosis and robust forensic evidence, enhancing the care and legal protection of sexually abused children.

Exploring Intervention Frameworks to Improve Utilization of Elimination of Mother-to-Child Transmission Services in Africa: A Scoping Review

BACKGROUND

Over the past two decades, intervention strategies to improve the use of the elimination of mother-to-child transmission (EMTCT) services have been implemented for several reasons. The reasons include elimination of HIV infections during pregnancy, delivery, breastfeeding, prevention of HIV, prevention of unintended pregnancies, and safer conception. Poor utilization of EMTCT services has been proven to put the child at risk of acquiring HIV, which could have been avoided.

OBJECTIVE

This study aims to explore and describe interventions to promote the elimination of mother-to-child transmission services among pregnant and nursing mothers in Africa.

METHOD

A scoping literature review technique was undertaken on research papers published in English that focused on EMTCT, barriers, interventions, and methods to address challenges to EMTCT utilization. These were screened independently and coded.

RESULTS

The analysis comprised 14 out of approximately 9029 literature sources. Intervention strategies to improve EMTCT service utilization, according to the findings, include accessibility and affordability, healthcare worker training, integrating the elimination of mother-to-child transmission into maternal and child health services, community-based interventions, family-centred approaches, and the use of technology.

CONCLUSIONS

Interventions that increase women's use of EMTCT services will contribute to the aim of HIV-free generation by reducing new HIV infections in children and saving lives.

Transactional sex and age-disparate sexual partnerships among adolescent girls and young women in Tanzania

Introduction

Adolescent girls and young women (AGYW) continue to experience a high incidence of HIV in southern and eastern Africa, even in the context of large-scale HIV prevention interventions. In Tanzania, AGYW account for the largest proportion of new infections and have a higher risk of HIV acquisition than males of comparable age.

Methods

We used routinely collected data from the PEPFAR/USAID-funded Sauti Project, a large combination HIV prevention program, to examine the relationship between transactional sex and sex with older partners among AGYW in Tanzania (2015-2020). Out-of-school AGYW 15-24 years completed a vulnerability index and were tested for HIV. We estimated weighted prevalence ratios (PR) and 95% confidence intervals (CI) for the associations of transactional sex (sex exchanged for money/services/gifts outside of sex work) and sex with older partners (≥5-years older, ≥10-years older) with prevalent HIV. Age cutoffs of 5 and 10 years were used to align partner age differences with age-disparate and intergenerational sex, respectively. We assessed potential synergism between exposures, and subgroup analyses explored associations among girls 15-19.

Results

Sixty seven thousand three hundred fifty seven AGYW completed the vulnerability index and 14,873 had captured HIV testing records. Median age was 20 years (IQR 18-22). Transactional sex and age-disparate sex were common (35% and 28%, respectively); 13% of AGYW reported both behaviors. HIV prevalence was associated with both transactional sex (PR: 1.28; 95% CI 1.00-1.63) and age-disparate sex (PR:1.26, 95% CI 0.99-1.60). In common referent analysis, transactional sex remained strongly associated with HIV, even in the absence of age-disparate sex (PR 1.41; 95% CI 1.02-1.94).

Discussion

Evidence of statistical synergism was not present, suggesting both transactional sex and age-disparate sex operate through similar pathways to increase HIV risk. Increased specificity within HIV prevention programs is needed to better meet the sexual and reproductive health needs of AGYW at high risk of HIV in Tanzania, including investment in tailored youth-friendly strategies for AGYW who have been marginalized from the current HIV response.

Geographic Mobility and HIV Care Engagement among People Living with HIV in Rural Kenya and Uganda

INTRODUCTION

Human mobility is a critical aspect of existence and survival, but may compromise care engagement among people living with HIV (PLHIV). We examined the association between various forms of human mobility with retention in HIV care and antiretroviral treatment (ART) interruptions.

METHODS

In a cohort of adult PLHIV in Kenya and Uganda, we collected surveys in 2016 about past 6-month travel and lifetime migration histories, including reasons and locations, and engagement in HIV care defined as (1) discontinuation of care, and (2) history of a treatment interruption among those who remained in care. We estimated associations between mobility and these care engagement outcomes via logistic regression, adjusted for sex, prior mobility, age, region, marital status, household wealth, and education.

RESULTS

Among 1081 participants, 56 (5%) reported having discontinued care; among those in care, 104 (10%) reported treatment interruption. Past-year migration was associated with a higher risk of discontinuation of care (adjusted odds ratio [aOR] 1.98, 95% CI 1.08-3.63). In sex-stratified models, the association was somewhat attenuated in women, but remained robust among men. Past-year migration was associated with reduced odds of having a treatment interruption among men (aOR 0.51, 95% CI 0.34-0.77) but not among women (aOR 2.67, 95% CI 0.78, 9.16). Travel in the past 6 months was not associated with discontinuation of care or treatment interruptions.

CONCLUSIONS

We observed both negative and protective effects of recent migration on care engagement and ART use that were most pronounced among men in this cohort. Migration can break ties to ongoing care, but for men, who have more agency in the decision to migrate, may foster new care and treatment strategies. Strategies that enable health facilities to support individuals throughout the process of transferring care could alleviate the risk of care disengagement.

Stand-alone model for delivery of oral HIV pre-exposure prophylaxis in Kenya: a single-arm, prospective pilot evaluation

INTRODUCTION

The delivery of daily, oral HIV pre-exposure prophylaxis (PrEP) at private pharmacies may overcome barriers to PrEP delivery at public healthcare facilities, including HIV-associated stigma, long wait times and overcrowding.

METHODS

At five private, community-based pharmacies in Kenya, a care pathway for PrEP delivery (ClinicalTrials.gov: NCT04558554) was piloted-the first of its kind in Africa. Pharmacy providers screened clients interested in PrEP for HIV risk, then used a prescribing checklist to identify clients without medical conditions that might contraindicate PrEP safety, counsel them on PrEP use and safety, conduct provider-assisted HIV self-testing and dispense PrEP. For complex clinical cases, a remote clinician was available for consultation. Clients who did not meet the checklist criteria were referred to public facilities for free services delivered by clinicians. Pharmacy providers dispensed a 1-month PrEP supply at initiation and a 3-month supply thereafter at a client fee of 300 KES (∼$3 USD) per visit.

RESULTS

From November 2020 to October 2021, pharmacy providers screened 575 clients, identified 476 who met the prescribing checklist criteria and initiated 287 (60%) on PrEP. Among pharmacy PrEP clients, the median age was 26 years (IQR 22-33) and 57% (163/287) were male. The prevalence of behaviours associated with HIV risk among clients was high; 84% (240/287) reported sexual partners with unknown HIV status and 53% (151/287) reported multiple sexual partners (past 6 months). PrEP continuation among clients was 53% (153/287) at 1 month, 36% (103/287) at 4 months and 21% (51/242) at 7 months. During the pilot observation period, 21% (61/287) of clients stopped and restarted PrEP and overall pill coverage was 40% (IQR 10%-70%). Nearly, all pharmacy PrEP clients (≥96%) agreed or strongly agreed with statements regarding the acceptability and appropriateness of pharmacy-delivered PrEP services.

CONCLUSIONS

Findings from this pilot suggest that populations at HIV risk frequently visit private pharmacies and PrEP initiation and continuation at pharmacies is similar to or exceeds that at public healthcare facilities. Private pharmacy-based PrEP delivery, conducted entirely by private-sector pharmacy staff, is a promising new delivery model that has the potential to expand PrEP reach in Kenya and similar settings.

Condom, modern contraceptive, and dual method use are associated with HIV status and relationship concurrency in a context of high mobility: A cross-sectional study of women of reproductive age in rural Kenya and Uganda, 2016

OBJECTIVES

Mobility (international/internal migration, and localized mobility) is a key driver of the HIV epidemic. While mobility is associated with higher-risk sexual behavior in women, a possible association with condom, modern contraceptive, and dual method use among women living with HIV (WLHIV), is unknown. In addition, HIV status and sexual behaviors such as relationship concurrency may also affect condom, modern contraceptive, and dual method use.

STUDY DESIGN

We surveyed sexually active women (N = 1067) aged 15 to 49 in 12 communities in Kenya and Uganda participating in a test-and-treat trial in 2015 to 2016. Generalized (unordered) multinomial logistic regression models accounting for community clustering examined associations between mobility (overnight travel away from home in past 6 months and any migration within past 2 years) and condom, modern contraceptive (i.e., oral contraceptive pills, injectables, intrauterine devices, implants, vasectomy, tubal ligation; excluding male/female condoms), and dual method use within past 6 months, adjusting for key covariates such as HIV status and relationship concurrency.

RESULTS

WLHIV relative to HIV-negative women (ratios of relative risk [RRR] = 3.76, 95% confidence interval [CI]: 2.40-5.89), and women in concurrent relative to monogamous relationships (RRR = 4.03, 95% CI 1.9-8.50) had higher odds of condom use alone. In contraceptive use models, WLHIV relative to HIV-negative women were less likely to use modern contraceptive methods alone (RRR = 0.51, 95% CI 0.36-0.73). Relationship concurrency (RRR = 4.51, 95% CI 2.10-9.67) and HIV status (RRR = 3.97, 95% CI 2.43-6.50) were associated with higher odds of dual method use while mobility was marginally associated with higher odds of dual method use (RRR = 1.65, 95% CI 0.99-2.77, p = 0.057).

CONCLUSIONS

Mobility had a potential impact on dual method use in Kenya and Uganda. In addition, our findings highlight that WLHIV were using condoms and dual methods more, but modern contraceptives less, than HIV-negative women. Those in concurrent relationships were also more likely to use condoms or dual methods. These findings suggest that in a context of high mobility, women may be appropriately assessing risks and taking measures to protect themselves and their partners from unintended pregnancies and acquisition and transmission of HIV.

IMPLICATIONS

Our findings point to a need to strengthen accessibility of sexual and reproductive health services for both mobile and residentially stable women in settings of high mobility and high HIV prevalence.