[1] Jatiya Kabi Kazi Nazrul Islam Univ, Dept Populat Sci, Mymensingh 2220, Bangladesh
[2] Univ Newcastle, Ctr Womens Hlth Res, Callaghan, NSW 2308, Australia
[3] Univ Melbourne, Nossal Inst Global Hlth, Melbourne Sch Populat & Global Hlth, Melbourne, Australia
[4] Bangladesh Icddr B, Int Ctr Diarrhoeal Dis Res, Hlth Syst & Populat Studies Div, 68 Shaheed Tajuddin Ahmed Sarani, Dhaka 1212, Bangladesh
[5] Icddr B, Maternal & Child Hlth Div, 68 Shaheed Tajuddin Ahmed Sarani, Dhaka 1212, Bangladesh
[6] La Trobe Univ, Dept Publ Hlth, Melbourne 3086, Australia