Received: 19 February 2021
Accepted: 22 October 2021
First Online: 9 November 2021
: Ethical approval was not a requirement in this study since we used secondary data which is available in the public domain. However, before the data was collected by Zambia Statistical Agency, the Institutional Review Board (IRB) of the ICF and the IRB in Zambia reviewed and approved all the questionnaires as well as Zambia’s - specific survey protocols, to ensure adherence to ethical issues.
: Not applicable.
: The authors declare that they have no competing interests.