“…Of the 20 cross-sectional surveys, one 21 was international; eight were large-scale national surveys 26,27,30,31,[35][36][37][38] ; and 11 were surveys of various Indian locales or regions. 8,9,20,22,24,25,28,29,33,34,40 The remaining four studies were service evaluations of which two 18,19 were retrospective preintervention and postintervention evaluations without controls and two 23,46 were prospective evaluations. Studies excluded 13 Table 1 shows methodological quality of the quantitative studies.…”