Table 2 Risk of bias of included studies
Author, year | Random sequence generation (selection bias) | Intention to treat (selection bias) | Blinding (performance bias) | Incomplete outcome data (attrition bias) | Selective reporting (reporting bias) | An overall decision on the quality of the study |
|---|---|---|---|---|---|---|
Jamil,2018/Pakistan [20] | Moderate | unknown | unclear | High | unknown | Moderate risk of bias |
Lyngdoh, D, 2018/ India [18] | Moderate | Moderate | unknown | Low | Low | Moderate risk of bias |
Semrau, 2016/Zambia [13] | Low | Low | Unclear | Low | Low | Low risk of bias |
Sazawal, 2016/Tanzania [14] | Low | Low | Not blind | Low | Low | Low risk of bias |
Khairuzzaman, Md, 2015/ Bangladesh [21] | Unclear | Low | Unclear | Low | Low | Moderate risk of bias |
Mullany, 2013/Bangladesh [19] | Low | Low | High | Low | Low risk of bias | |
Soofi S, 2012/Pakistan [12] | Low | Unclear | Low | Low | Low | Low risk of bias |
Arifeen, 2012/Bangladesh [11] | Low | Low | Low | Low | Low | Low risk of bias |
Mullany L, C,2006/Nepal &Bangladesh [10] | Low | Low | Low | Low | Low | Low risk of bias |