Accepted: 30 January 2022
First Online: 15 February 2022
: The study was performed in accordance with the Declaration of Helsinki. Ethical approval to conduct this study from Scientific Ethics and Research Committee of University of Nairobi, Kenyatta National Hospital (KNH-UON ERC) was obtained before conducting the study (approval number P313/04/2019). In addition, permission was sought to carry out the study from the management of MNTRH and the MMT clinic. The ethics approval letter is attached in supplementary material InternalRef removed.This was a retrospective study, involving data abstraction from patient records, with no direct interviews to patient, hence no consent to participate was required.
: Not applicable.
: The authors declare that they have no competing interests.