Funding for this research was provided by:
The South African Medical Research Council, with funds from the South African National Department of Health, MRC UK (via the Newton Fund) and GSK R&D (#074NEWTON NCD)
Faculty Research Committee Individual Research Grant, University of Witwatersrand (001 254 8463101 5121105 000000 0000000000 5254)
The International Society of Nephrology Clinical Research Program
Received: 28 August 2020
Accepted: 2 March 2021
First Online: 20 March 2021
: Study approval was obtained from the Human Research Ethics Committee (Medical) of the University of the Witwatersrand (M160937 and M190434) and trained fieldworkers obtained written, informed consent from participants in their first language.
: Not applicable.
: The authors declare that they have no competing interests.