Funding for this research was provided by:
National Research Foundation (CPRR150722129596, SDG160531166953, RCA13102556861)
Bill and Melinda Gates Foundation (19790.01)
Received: 9 August 2018
Accepted: 6 March 2019
First Online: 13 March 2019
Ethics approval and consent to participate
: We have permission from the ZAMSTAR principal investigators to use the ZAMSTAR and SOCS data in this secondary analysis. Ethics approval for the ZAMSTAR and SOCS studies were obtained from the Biomedical Ethics Committee at the University of Zambia, Lusaka, Zambia; the Stellenbosch Health Research Ethics Committee, Tygerberg, South Africa; and the London School of Hygiene & Tropical Medicine, London, UK. Individual written consent was obtained from all participants included in the ZAMSTAR SOCS cohort. Ethics approval for this study was obtained from the Research Ethics Committee: Human Research (Humanities) at Stellenbosch University, Stellenbosch, South Africa (project number SU-HSD-004732).
: Not applicable for this study.
: The authors declare that they have no competing interest.
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