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Article History

Received: 10 September 2018

Accepted: 19 December 2018

First Online: 15 January 2019

Ethics approval and consent to participate

: The authors were granted approval from the Demographic and Health survey (DHS) Review Board to obtain and use the collected data for analysis. All data were anonymized prior to the authors receiving the data.This study was based on secondary data from the ZDHS 2015 report, it did not involve physical risk on participants and the dataset used did not contain identities of the participants. No humans were interviewed hence there was no physical risk or harm involved.

: Not applicable.

: The authors declare that they have no competing interests.

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