“…Five groups of potential explanatory variables were identified from the literature (Fein, Labiner-Wolfe, Scanlon, & Grummer-Strwan, 2008;Upul, Sanjeeva, Hiranya, Indika, & Michael, 2012;Khanal et al, 2013;Melkam, Molla, Zelalem, & Azeb, 2013;Brown et al, 2014;Issaka et al, 2015a, b).…”