Recent Publications

Impact of a borderless sample transport network for scaling up viral load monitoring: results of a geospatial optimization model for Zambia

The World Health Organization recommends viral load (VL) monitoring at six and twelve months and then annually after initiating antiretroviral treatment for HIV. In many African countries, expansion of VL testing has been slow due to a lack of efficient blood sample transportation networks (STN). To assist Zambia in scaling up testing capacity, we modelled an optimal STN to minimize the cost of a national VL STN. The model optimizes a STN in Zambia for the anticipated 1.5 million VL tests that 

Effectiveness of interventions for unstable patients on antiretroviral therapy in South Africa: results of a cluster-randomised evaluation

As loss from HIV care is an ongoing challenge globally, interventions are needed for patients who don’t achieve or maintain ART stability. The 2015 South African National Adherence Guidelines (AGL) for Chronic Diseases include two interventions targeted at unstable patients: early tracing of patients who miss visits (TRIC) and enhanced adherence counselling (EAC). methods As part of a cluster-randomised evaluation at 12 intervention and 12 control clinics in four provinces, intervention sites 

How good are our guidelines? Four years of experience with the SAMJ’s AGREE II review of submitted clinical practice guidelines

In 2014, the SAMJ appointed an editorial subcommittee to review CPGs submitted for publication. This was in response to several concerns, including the global shift in CPG quality requirements, the potential effect of poor-quality CPGs on healthcare quality and cost, and the challenges South African (SA) CPG developers face in meeting new standards. This editorial reflects on the SAMJ CPG review subcommittee’s experience over the past 4 years and describes the value of more robust CPG 

Evaluating the integration of HIV selftesting into low-resource health systems: study protocol for a cluster-randomized control trial from EQUIP Innovations

Throughout sub-Saharan Africa HIV-testing rates remain low. Barriers to testing, such as inconvenient service hours and long wait times, lack of privacy, and fear of unwanted disclosure, continue to impede service utilization. HIV self-testing (HIVST) is one strategy that addresses these barriers and has been shown to increase use of HIV-testing when distributed through community-based settings. However, the scalability of HIVST is limited because it has yet to be fully integrated into 

Costs and cost-effectiveness of LEEP versus cryotherapy for treating cervical dysplasia among HIV-positive women in Johannesburg, South Africa

Cervical cancer incidence is significant in countries, such as South Africa, with high burdens of both HIV and human papillomavirus (HPV). Cervical cancer is largely preventable if dysplasia is diagnosed and treated early, but there is debate regarding the best approaches for screening and treatment, especially for low-resource settings. Currently South Africa provides Pap smears followed by colposcopic biopsy and LEEP if needed in its public health facilities. We estimated the costs and 

“My future is bright. . .I won’t die with the cause of AIDS”: ten-year patient ART outcomes and experiences in South Africa

South Africa is moving into a new era of HIV treatment with “treat all” policies where people may be on treatment for most of their lives. We need to understand treatment outcomes and facilitators of long-term antiretroviral treatment (ART) adherence and retention-in-care in the South African context. In one of the first studies to investigate long-term treatment outcomes in South Africa, we aimed to describe ten-year patient outcomes at a large public-sector HIV clinic in Johannesburg and 

Improved simplified clinical algorithm for identifying patients eligible for immediate initiation of antiretroviral therapy for HIV (SLATE II): protocol for a randomized evaluation

The SLATE II (Simplified Algorithm for Treatment Eligibility) study is an individually randomized evaluation of a clinical algorithm to reliably determine a patient’s eligibility for immediate ART initiation without waiting for laboratory results or additional clinic visits. It differs from the earlier SLATE I study in management of patients with symptoms of tuberculosis (under SLATE II these patients may be started on ART immediately) and other criteria for immediate initiation. SLATE II 

Can routine inpatient mortality data improve HIV mortality estimates? Inpatient mortality at an urban hospital in South Africa

South Africa (SA) has one of the world’s largest HIV treatment programmes, to which a dramatic increase in life expectancy has been attributed. However, there continue to be concerns regarding the reporting of HIV-related mortality in SA, which varies by source. As accurate HIV mortality estimates are key to measuring the success of the national programme as well as identifying areas for improvement, we propose a complementary approach to monitoring changes in HIV-related mortality using 

Prevalence, incidence, predictors, treatment, and control of hypertension among HIVpositive adults on antiretroviral treatment in public sector treatment programs in South Africa

One of the key risk factors for cardiovascular disease is hypertension. Hypertension, which leads to heart attacks and strokes, already affects one billion people worldwide, making it a global public health issue. Incidence and prevalence of the condition is on the rise in low and middle-income countries, with the biggest increase in sub-Saharan Africa and SouthAfrica at the forefront. We examined the prevalence, incidence, predictors, treatment, and control of hypertension among HIV-positive 

Implementation of Option B and a fixed-dose combination antiretroviral regimen for prevention of mother-to-child transmission of HIV in South Africa: A model of uptake and adherence to care

Initiating and retaining pregnant women on antiretroviral therapy (ART) to prevent motherto-child HIV transmission (PMTCT) remains a major challenge facing African HIV programs, particularly during the critical final months prior to delivery. In 2013, South Africa implemented its ªOption Bº PMTCT regimen (three-drug ART throughout pregnancy andbreastfeeding, regardless of maternal CD4 count) and introduced once-daily fixed-dose combinations and lifelong ART. Currently, the uptake of Option B