Table 2.
Risk of bias in studies included in this meta-analysis on the intraoperative use of MMC as adjuvant treatment in external or endonasal dacryocystorhinostomy
| References | Random sequence generation | Allocation concealment | Blinders of participants and professionals | Blindness of outcome evaluators | Incomplete outcome | Selective outcome report |
|---|---|---|---|---|---|---|
| *Ahmad and Hunto [22] | Uncertain | Uncertain | Low | High | Uncertain | Uncertain |
| *Ari et al. [6] | Low | Uncertain | Low | Low | Low | Low |
| *Eshraghy et al. [23] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| *Gonzalvo et al. [24] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| *Javaid et al. [25] | Uncertain | Uncertain | Uncertain | Uncertain | Low | Low |
| *Kao et al. [8] | High | High | Uncertain | Uncertain | Uncertain | Uncertain |
| *Li and Zhao [26] | High | Uncertain | High | Uncertain | Uncertain | Uncertain |
| *Liao et al. [27] | Uncertain | Uncertain | Low | High | Uncertain | Uncertain |
| *Qadir et al. [10] | High | High | Uncertain | Uncertain | Uncertain | Uncertain |
| *Roozitalab et al. [28] | High | High | Uncertain | Uncertain | Uncertain | Uncertain |
| *Shaikh and Hadrawi [29] | High | High | Uncertain | Uncertain | Uncertain | Uncertain |
| *Sinha et al. [30] | High | High | Uncertain | High | Uncertain | Uncertain |
| *Yalaz [31] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| *Yildirim et al. [32] | Uncertain | Uncertain | Low | Low | Uncertain | Uncertain |
| #Anisseril et al. [33] | Low | Uncertain | Low | Low | Low | Uncertain |
| #Farahani and Ramezani [11] | Low | Incerto | Low | Low | Low | Uncertain |
| #Ghosh et al. [34] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| #Gupta et al. [21] | High | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| #Kedilaya et al. [35] | Uncertain | Uncertain | Uncertain | Uncertain | Low | Low |
| #Mudhol et al. [4] | Low | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| #Özkiriş and Özkiriş [36] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| #Prasannaraj et al. [37] | Low | Low | Uncertain | Uncertain | Uncertain | Uncertain |
| #Qin et al. [38] | Uncertain | Low | High | High | Uncertain | Uncertain |
| #Qiu [39] | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain | Uncertain |
| #Tirakunwichcha et al. [40] | Low | Low | Low | Low | Uncertain | Uncertain |
| #Xie et al. [41] | High | High | Uncertain | Uncertain | Uncertain | Uncertain |
| #Wadhera et al. [42] | High | High | Uncertain | Low | Uncertain | Uncertain |
*Study related to Ex-DCR
#Study related to En-DCR