Funding for this research was provided by:
United States Agency for International Development
Received: 22 July 2016
Accepted: 17 October 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: The Ethical Review Committee of the BRAC JPG School of Public Health, BRAC University reviewed and approved the study protocol shortly before data collection began in 2013. Interviewers obtained written informed consent from all respondents before interview.Consent for publicationNot applicable
: The authors declare that they have no competing interests.