Table 2 Assessment of the quality of the studies included in the review based on Effective Public Health Practice Project: Quality assessment tool for quantitative studies
No. | Author, Year | Selection Bias | Study Design | Confounders | Blinding | Data collection method | Withdrawals and Drop-Out | Final Rating |
|---|---|---|---|---|---|---|---|---|
1 | Assir et al., 2014 [16] | 3 | 3 | 1 | 3 | 1 | NA | 3 |
2 | Baba et al., 2013 [18] | 2 | 3 | 3 | 3 | 2 | NA | 3 |
3 | Barua and Gill, 2016 [19] | 2 | 3 | 1 | 3 | 1 | NA | 2 |
4 | Carme et al., 2009 [20] | 2 | 3 | 1 | 3 | 2 | NA | 2 |
5 | Chipwaza et al., 2014 [21] | 2 | 3 | 3 | 3 | 2 | NA | 3 |
6 | Epelboin et al., 2012 [22] | 2 | 3 | 1 | 2 | 1 | NA | 2 |
7 | Hati et al., 2012 [23] | 3 | 3 | 2 | 3 | 2 | NA | 3 |
8 | Magalhaes et al., 2014 [14] | 2 | 3 | 1 | 2 | 1 | NA | 2 |
9 | Mendonça et al., 2015 [15] | 2 | 3 | 1 | 2 | 1 | NA | 2 |
10 | Mohapatra et al., 2012 [24] | 2 | 3 | 2 | 3 | 1 | NA | 2 |
11 | Mueller et al., 2014 [25] | 2 | 3 | 3 | 2 | 1 | NA | 2 |
12 | Rao et a., 2016 [26] | 2 | 3 | 3 | 3 | 1 | NA | 2 |
13 | Sow et al., 2016 [28] | 2 | 3 | 2 | 3 | 1 | NA | 2 |
14 | Swoboda et al., 2014 [27] | 3 | 3 | 3 | 3 | 2 | NA | 3 |
15 | Zaki SA and Shanbag P, 2010 [29] | 2 | 3 | 3 | 3 | 3 | NA | 3 |