Implementation and effectiveness of the linkage to HIV care intervention carried out within the ANRS 12249 TasP trial (2012-2016) in the Hlabisa sub-district, rural KwaZulu-Natal, South Africa

(2023) Implementation and effectiveness of the linkage to HIV care intervention carried out within the ANRS 12249 TasP trial (2012-2016) in the Hlabisa sub-district, rural KwaZulu-Natal, South Africa. Africa Health Research Institute doi:10.23664/ahri.tasp.linkage.paper.dataset [Dataset]

Abstract

The analysis conducted aimed at describing the implementation and effectiveness of the linkage-to-care intervention in rural KwaZulu-Natal, South Africa. In the ANRS 12249 TasP trial on Universal Testing and Treatment (UTT) implemented between 2012-2016, resident individuals =16 years were offered home-based HIV testing every six months. Those ascertained to be HIV-positive were referred to trial clinics. Starting May 2013, a linkage-to-care intervention was implemented in both trial arms, consisting of tracking through phone calls and/or home visits to “re-refer” people who had not linked to care to trial clinics within three months of the first home-based referral. We first described fidelity of the linkage-to-care intervention implementation: (1) adherence, describing whether the intervention has been implemented as designed, was measured looking at “contact attempt” (or tracking), i.e. when a fieldworker tried to contact an HIV-positive individual eligible for the intervention, either by phoning or visiting the person at home; and (2) exposure, describing how the target population received the intervention, was measured by looking at “re-referral”, i.e. when the individual answered his/her phone or opened his/her door when visited at home (assuming that a re-referral in care occurred at each successful contact). We then studied the effectiveness of the linkage-to-care intervention, defined as having linked to care, meaning having attended a TasP trial clinic (the variable used was “date of the first visit in a trial clinic”) or a DoH clinic (the variables used were “date of first CD4 count or viral load measurement” or “date of first visit in a DoH clinic”) following HIV identification through HBHCT.

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Contributors

Contributor: Nuala McGrath

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