“…1). The 30 eligible studies include 21 randomized controlled trials [44, 46, 47, 50, 51, 53-56, 58-62, 66, 68, 70-74] two feasibility randomized controlled trials [52,63], three cluster randomized control trials [49,57,69] and five cohort studies [45,48,64,65,67]. The studies were conducted in 14 LMICs including nine in China [45-47, 53, 56, 57, 70, 73, 88], five in India [49,58,62,65,89], three in South Africa [60,61,67], three in Iran [51,63,66], two in Bangladesh [49,54] and one each in Iraq [52], Lebanon [48], Pakistan [68], Mexico [44], Cambodia [69] and Thailand [64].…”