Funding for this research was provided by:
Wellcome Trust (107754/Z/15/Z)
Received: 10 January 2020
Accepted: 28 February 2020
First Online: 23 March 2020
Ethics approval and consent to participate
: Ethical clearance to conduct this study was obtained from the University of Witwatersrand Human Research Ethics Committee (HREC), clearance Certificate number M171053. Further clearance was obtained from the Uganda National Council for Science and Technology (UNCST) with registration number HS2366. Data for the study was obtained from surveys conducted in Uganda. The study was a secondary analysis of data and therefore consent to participate is not applicable.
: Not applicable.
: The authors declare that they have no competing interests.