Funding for this research was provided by:
National Institute for Health Research (16/136/33)
Letten Foundation, Zimabwe
Received: 1 December 2020
Accepted: 4 May 2021
First Online: 24 May 2021
: Consent to participate in the study was waived by the ethical review committees. The principal investigator of the primary study provided an official written consent this study to use their data for secondary analysis, which was also used in obtaining approval to use secondary data from the institutional and national ethical review committees [Joint Research Ethics Committee (JREC/101/18) and Medical Research Council of Zimbabwe (MRCZ/A/2301) respectively].
: The authors declare that there is no conflict of interest.