Article History
Received: 8 March 2018
Accepted: 30 July 2019
First Online: 12 August 2019
Ethics approval and consent to participate
: Ethical approval for study was not required because the data was secondary and available the in public domain. Permission to download and analyze UDHS was granted by Measure DHS program/ICF International.
: Not applicable.
: The authors declare that they have no competing interests.