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Article History

Received: 11 February 2019

Accepted: 15 May 2019

First Online: 22 May 2019

Ethics approval and consent to participate

: Letter of consent was received from the Measure DHS International Program, which authorized the data sets. All the data that used in this study are publicly available and do not in any way allow respondents, households, or sample communities to be identified. Confidentiality of data maintained anonymously.

: Not applicable.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.