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Article History

Received: 27 April 2018

Accepted: 1 October 2018

First Online: 11 October 2018

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: .

: 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 an Editorial Board member for BMC Public Health.

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