Table 5.

Risk of bias assessment of the studies included in the meta-analysis (n = 19)

	Randomization Method	Allocation Concealment	Blinding of participants and personnel	Blinding of outcome assessors	Incomplete outcome data	Selective outcome reporting	Other bias
Mumtaz et al. 2000 [43]
Zavaleta et al. 2000 [44]
Ekström et al. 2002 [45]
Thuy et al. 2003 [46]
Makola et al. 2003 [47]
Mukhopadhyay et al. 2004 [48, 49]
Mukhopadhyay et al. 2004 [48, 49]
Sharma et al. 2004 [50]
Kumar et al. 2005 [51]
Saha et al. 2007 [52]
Bhutta et al. 2009 [53]
Wijaya-Erhardt [54]
Choudhury et al. 2012 [55]
Magon et al. 2014 [56]
Kamdi et al. 2015 [57]
Mehta et al. 2017 [58]
Jose et al. 2019 [59]