Table 3.
Risk of Bias in Included Studies
| Gupta et al. (2017)17 |
Gürlen and Aras (2016)18 |
Jain et al. (2014)19 |
Kahraman et al. (2017)20 |
Karagöz et al. (2013)21 |
Kumar et al. (2017)22 |
Şenışık and Türkkahraman (2012)23 |
|
| Bias in randomization | High | Some concerns | Some concerns | High | High | Some concerns | High |
| Bias due to deviations from intended intervention | Low | Low | Some concerns | Low | High | Low | Low |
| Bias due to missing data | Low | Low | Low | Some concerns | Low | Low | Low |
| Measurement of outcome | Some Concerns | Low | High | High | High | Some concerns | High |
| Selection of result | High | High | High | High | Some concerns | High | High |
| Overall bias | High | High | High | High | High | High | High |