Article History
Received: 14 November 2018
Accepted: 11 August 2019
First Online: 17 August 2019
Ethics approval and consent to participate
: Ethics approval for this study was not required since the data is secondary and is available in the public domain. More details regarding DHS data and ethical standards are available at: ExternalRef removed.
: No consent to publish was needed for this study as we did not use any details, images or videos related to individual participants. In addition data used is available in the public domain.
: Sanni Yaya is member of the editorial board (Associate Editor) of this journal.