Received: 5 July 2021
Accepted: 29 September 2021
First Online: 12 October 2021
: The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the Health Research Ethics Committee (HREC), Ministry of Health, Kano & Kaduna States (Ref No: MOH/ADM/744/VOL.1/923 and MOH/OFF/97/T.1/2007 dated 12<sup>th</sup> May & 7<sup>th</sup> May 2020, respectively). Informed consent was obtained from all the respondents involved in the study.
: All included data are anonymised.
: The authors declare no competing interests.