Funding for this research was provided by:
Bill and Melinda Gates Foundation (52037)
National Institute of Child Health and Human Development (P2C HD050924)
Received: 24 February 2016
Accepted: 11 October 2018
First Online: 29 October 2018
Ethics approval and consent to participate
: The ethical approval for the study was obtained from the Nigeria Health and Research Ethics Committee and the University of North Carolina at Chapel Hill Institutional Review Board. Verbal informed consent was obtained from all respondents prior to each round of study participation. Women who were aged less than 18 years (ages 15–17) were considered as emancipated minors and were able to provide consent. The interviewers documented the receipt of verbal informed consent on the individual consent forms. Upon receipt of informed consent, the women were interviewed by trained female interviewers using paper-and-pencil questionnaires at private locations within or close to their residence. This study used the de-identified public-use versions of the datasets.
: Not applicable
: The authors declare that they have no competing interests.
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