Funding for this research was provided by:
Lee Kuan Yew School of Public Policy, National University of Singapore
Received: 13 June 2018
Accepted: 6 February 2019
First Online: 19 February 2019
Ethics approval and consent to participate
: This study uses publicly available data from DHLS-II, DHLS-III, and NFHS-IV. Procedures and questionnaires for standard DHS surveys have been reviewed and approved by ICF Institutional Review Board (IRB). All study participants gave informed consent before participation.
: All authors give full consent for publication of this article in JOHP if accepted.
: The authors declare that they have no competing interests.
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