The HIV care cascade for adolescents initiated on antiretroviral therapy in a health district of South Africa: a retrospective cohort study

Roxanna Haghighat,Nontuthuzelo Bungane,Lucie Cluver,Elona Toska

doi:10.1186/s12879-020-05742-9

Roxanna Haghighat, Nontuthuzelo Bungane + Show 2 more

Open Access

https://doi.org/10.1186/s12879-020-05742-9

Copy DOI

Abstract

BackgroundLittle evidence exists to comprehensively estimate adolescent viral suppression after initiation on antiretroviral therapy in sub-Saharan Africa. This study examines adolescent progression along the HIV care cascade to viral suppression for adolescents initiated on antiretroviral therapy in South Africa.MethodsAll adolescents ever initiated on antiretroviral therapy (n=1080) by 2015 in a health district of the Eastern Cape, South Africa, were interviewed in 2014–2015. Clinical records were extracted from 52 healthcare facilities through January 2018 (including records in multiple facilities). Mortality and loss to follow-up rates were corrected for transfers. Predictors of progression through the HIV care cascade were tested using sequential multivariable logistic regressions. Predicted probabilities for the effects of significant predictors were estimated by sex and mode of infection.ResultsCorrected mortality and loss to follow-up rates were 3.3 and 16.9%, respectively. Among adolescents with clinical records, 92.3% had ≥1 viral load, but only 51.1% of viral loads were from the past 12 months. Adolescents on ART for ≥2 years (AOR 3.42 [95%CI 2.14–5.47], p< 0.001) and who experienced decentralised care (AOR 1.39 [95%CI 1.06–1.83], p=0.018) were more likely to have a recent viral load. The average effect of decentralised care on recent viral load was greater for female (AOR 2.39 [95%CI 1.29–4.43], p=0.006) and sexually infected adolescents (AOR 3.48 [95%CI 1.04–11.65], p=0.043). Of the total cohort, 47.5% were recorded as fully virally suppressed at most recent test. Only 23.2% were recorded as fully virally suppressed within the past 12 months. Younger adolescents (AOR 1.39 [95%CI 1.06–1.82], p=0.017) and those on ART for ≥2 years (AOR 1.70 [95%CI 1.12–2.58], p=0.013) were more likely to be fully viral suppressed.ConclusionsViral load recording and viral suppression rates remain low for ART-initiated adolescents in South Africa. Improved outcomes for this population require stronger engagement in care and viral load monitoring.

Highlights

Little evidence exists to comprehensively estimate adolescent viral suppression after initiation on antiretroviral therapy in sub-Saharan Africa
In South Africa, which houses the world’s largest antiretroviral therapy (ART) programme, adolescents have repeatedly demonstrated the lowest rates of retention in care and viral suppression compared to other age groups [6]
We evaluate the progression of ARTinitiated adolescents to viral suppression along the Human immunodeficiency virus (HIV) care cascade in South Africa, including operational outcomes as well as mortality and retention in care, using data up to 2018 from multiple healthcare facilities within South Africa’s decentralised public healthcare system

Summary

Introduction

This study examines adolescent progression along the HIV care cascade to viral suppression for adolescents initiated on antiretroviral therapy in South Africa. The HIV care cascade has been widely used among various patient populations to identify progress at critical stages along the continuum of care from HIV testing to ART initiation and viral suppression [7]. This tool allows for both the monitoring of patients’ health and identification of key gaps in care that can be targeted by interventions in alignment with the UNAIDS 90–90-90 treatment target for 2020 [8, 9]

Methods

Results

Discussion

Conclusion