Publications by authors named "Heidi van-Rooyen"

Objective: Evaluate the clinical utility of patient-collected dried blood spots (DBS) in measuring HIV-1 viral load (VL) for monitoring antiretroviral therapy (ART) compared to provider-collected DBS and blood plasma.

Design: In a randomized trial of community-based delivery of ART in South Africa, we assessed performance of: DBS specimens compared to plasma, and participant-collected vs. staff-collected DBS specimens, to measure HIV-1 VL.

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Background: COVID-19 vaccination rates in South Africa remain low at 51% of the adult population being fully vaccinated, defined as having two shorts of the COVID-19 vaccine with or without a booster. To improve vaccine uptake, a community-based intervention was tested in a high vaccine hesitancy community in South Africa. Trained community youths used social media, face to face interactions, door to door and neighbourhood outreach activities to deliver the intervention.

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For the past four decades, biomedical science has transformed clinical outcomes for HIV and AIDS. However, the social, economic and gendered determinants of HIV remain largely intact. The social science and humanities offer concepts and methods for articulating why these remain intractable.

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In the context of a couples cohort established to evaluate an optimised couples-focused behavioural intervention in rural South Africa, we examined: (1) Is couples' relationship quality (RQ) associated with couples HIV testing and counselling (CHTC) uptake? (2) Does CHTC uptake or the intervention components uptake improve subsequent RQ? Enrolled couples, ( = 218), previously naïve to couples HIV testing, were invited to two group sessions and offered four couples counselling sessions (CS1-CS4), as part of the intervention and administered a questionnaire individually at baseline, four weeks, and four months, which included item-scales to measure RQ: satisfaction, intimacy, dyadic trust, conflict, and mutual constructive communication. Logistic models indicated that no baseline RQ measures were significantly associated with CHTC uptake. Linear regression models showed that CHTC uptake before four weeks assessment significantly improved couples' satisfaction and trust at four weeks, and intimacy at four months.

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Introduction: Significant progress has been made in the HIV response in South Africa; however, gaps remain in ensuring engagement in care to support life-long medication adherence and viral suppression. The National Department of Health (NDoH) has introduced community-based and clinic-based HIV differentiated service delivery (DSD) models to tackle suboptimal adherence and retention in care. Nevertheless, differentiated care models require adaptation to better serve clients who struggle with adherence.

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Article Synopsis
  • Implementing community-based antiretroviral therapy (ART) for HIV in KwaZulu-Natal, South Africa could significantly improve health outcomes, potentially reducing incident infections, HIV-related deaths, and disability-adjusted life years (DALYs) compared to standard clinic care.
  • By 2060, this community approach could avert approximately 27.9% of new infections and 27.8% of deaths among people not reached by clinics, with adolescent girls and young women benefiting the most.
  • Although initial costs for community ART would be higher, it remains cost-effective at $102 per DALY averted, and adjusting refill schedules can further enhance its cost-effectiveness to $78.5 per DALY averted.
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Background: Couple-based interventions (CBIs), despite strong efficacy in improving numerous HIV risk behaviors, are not widely available and have not been tested to improve women's antiretroviral therapy (ART) adherence. We examined barriers and facilitators to participation in a CBI based on cognitive behavioral couple therapy for women's ART adherence in KwaZulu-Natal, South Africa.

Methods: Semi-structured interviews were conducted with women with HIV (n = 15) and men of mixed HIV status (n = 15).

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Adolescence and young adulthood are important periods of transition and therefore for action and intervention to ensure future sexual and reproductive health (SRH). Caregiver-adolescent communication about sex and sexuality is a protective factor for SRH, but there are often barriers to this. Adults' perspectives are limited within the literature but important as they should lead this process.

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Background: Of the 8 million people in South Africa living with HIV, 74% of persons living with HIV are on antiretroviral therapy (ART) and 65% are virally suppressed. Detectable viral load results in HIV-associated morbidity and mortality and HIV transmission. Patient barriers to care, such as missed wages, transport costs, and long wait times for clinic visits and ART refills, are associated with detectable viral load.

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Background: Home delivery and monitoring of antiretroviral therapy (ART) is convenient, overcomes logistical barriers, and could increase individual ART adherence and viral suppression. With client payment and sufficient health benefits, this strategy could be scalable. The aim of the Deliver Health Study was to test the acceptability and efficacy of a user fee for home ART monitoring and delivery.

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Background: South Africa currently has the greatest number of people with HIV globally. The country has not yet met its 95-95-95 goals, with different gaps in the HIV care cascade for women and men. This paper reports on a protocol to pilot test a couple-based intervention designed to improve women's antiretroviral therapy (ART) adherence and men's engagement in care in heterosexual couples living in the Vulindlela area of KwaZulu-Natal, South Africa.

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It has been over a year since South Africa officially began its national COVID-19 vaccination programme. Yet, currently only half of the adult population is fully vaccinated. While supply-related challenges continue to contribute to suboptimal vaccination coverage, so too does vaccine hesitancy.

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Background: Between 2012 and 2015, the Uthando Lwethu (UL) study demonstrated that a theory-based behavioural couples-focused intervention significantly increased participation in couples HIV testing and counselling (CHTC) among South African couples who had never previously tested for HIV together or mutually disclosed their HIV status, 42% compared to 12% of the control group at 9 months follow-up. Although effective, we were nonetheless concerned that in this high prevalence setting the majority (58%) of intervention couples chose not to test together. In response we optimised the UL intervention and in a new study, 'Igugu Lethu', we are evaluating the success of the optimised intervention in promoting CHTC.

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Background: To reach 95% of persons living with HIV (PLWH) knowing their HIV status, alternative testing approaches such as HIV self-testing (HIVST) and secondary HIVST kit distribution are needed. We investigated if secondary HIVST kit distribution from male and female PLWH in South Africa would successfully lead to their contacts testing for HIV and linking to care if positive.

Methods: Male and female PLWH participating in an HIV treatment trial between July and November 2018 in KwaZulu-Natal, South Africa were offered participation as "HIVST kit distributors" in a pilot of secondary distribution of HIVST kits to give to sexual partners and social networks.

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South Africa launched a mass COVID-19 vaccination campaign in May 2021, targeting 40 million adults. Understanding predictors of COVID-19 vaccine intentions was required to achieve this goal. We conducted a population-based survey in June-July 2021 using the WHO Behavioral and Social Drivers (BeSD) of COVID-19 Vaccination tool to determine predictors of vaccine hesitancy, defined as intention to refuse or uncertainty whether to accept COVID-19 vaccination.

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Despite having some of the world's highest rates of HIV, there is a lack of knowledge on correlates of transmission risk among gay, bisexual and other men who have sex with men in Southern Africa. There is even less known about the factors that shape HIV risk in male-male couples. Using data from Together Tomorrow, a study of partnered GBMSM in South Africa and Namibia, this study assessed the individual and dyadic correlates of three major HIV risk factors in this population: substance misuse, transactional sex, and depressive symptomatology.

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In South Africa, couple-based interventions (CBIs) have been used to increase HIV testing, reduce HIV transmission, and shift relationship dynamics. To understand local definitions of healthy relationships, this study sought to collect qualitative data on a model of healthy relationships in a semi-rural area of KwaZulu-Natal, South Africa. We conducted semi-structured qualitative interviews with HIV-positive women (n = 15) and men of mixed HIV status (n = 15) who were in heterosexual, monogamous relationships (not with each other).

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Objectives: This qualitative study explored how to optimise a couples-focused intervention to promote couples HIV testing and counselling (CHTC).

Setting: Community setting in Kwa-Zulu Natal, South Africa.

Participants: Qualitative interviews were conducted with 20 couples who had participated in a couples-focused intervention and five staff members delivering the intervention.

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Introduction: UNAIDS fast track targets for ending the AIDS epidemic by 2030 call for viral suppression in 95% of people using antiretroviral therapy (ART) to treat HIV infection. Difficulties in linking to care following a positive HIV test have impeded progress towards meeting treatment targets. Community-based HIV services may reduce linkage barriers and have been associated with high retention and favourable clinical outcomes.

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Social influences may create a barrier to couples HIV testing and counselling (CHTC) uptake in sub-Saharan Africa. This secondary analysis of data collected in the 'Uthando Lwethu' randomised controlled trial used discrete-time survival models to evaluate the association between within-couple average 'peer support' score and uptake of CHTC by the end of nine months' follow-up. Peer support was conceptualised by self-rated strength of agreement with two statements describing friendships outside of the primary partnership.

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Background: South Africa is disproportionately impacted by non-communicable diseases (NCDs) and HIV/AIDS. We investigated the prevalence of known/unknown NCD risk factors, HIV, and NCD risk factor-HIV comorbidity; and treatment status on known diseases to determine the prevalence of controlled/uncontrolled disease.

Methods: This cross-sectional study (June 2018-March 2019) within an integrated testing centre in Soweto, South Africa, screened adults (aged ≥18 years) for body mass index (BMI), hypertension (HT), rapid glucose and cholesterol, and HIV.

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: Acceptance of COVID-19 vaccines is critical to personal health, protecting vulnerable populations, reopening socio-economic life, and achieving population health and safety through immunity. The primary aim of this review was to investigate the extent and determinants of COVID-19 vaccine hesitancy in South Africa to inform the development of strategies to address it. A secondary aim was to enhance understandings of and responses to vaccine hesitancy more generally in South Africa, with potential positive effect on vaccination uptake during and beyond the COVID-19 pandemic.

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There is strong evidence that gay, bisexual and other men who have sex with men (GBMSM) in African countries experience high prevalence of HIV. However, missing from the literature is an understanding of the HIV risk behaviors and prevention needs of partnered GBMSM in African countries. The Together Tomorrow project sampled 440 partnered GBMSM (220 couples) in South Africa and Namibia.

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Introduction: South Africa is the HIV epidemic epicentre; however, non-communicable diseases (NCDs) will be the most common cause of death by 2030. To improve identification and initiation of care for HIV and NCDs, we assessed proportion of clients referred and linked to care (LTC) for abnormal/positive screening results and time to LTC and treatment initiation from a HIV Testing Services (HTS) Centre before and after integrated testing for NCDs with optional peer-navigated linkage to care.

Materials And Methods: This two-phase prospective study was conducted at an adult HTS Centre in Soweto, South Africa.

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