Table 2.
Risk of bias table for included studies
| Sl. No | Trial | Randomization process |
Deviation from intended intervention | Missing outcome data | Measurement of outcome data | Selection of reported result | Overall judgment |
|---|---|---|---|---|---|---|---|
| 1. | Anil Yağcioğlu et al. 2005 [13] | Some concerns | Low | High | Low | Low | Some concerns |
| 2. | Assion et al. 2008 [14] | Low | Low | Low | Low | Low | Low |
| 3. | Barbui et al. 2011 [15] | Low | Low | Low | Low | Low | Low |
| 4. | Barnes et al. 2017 [16] | Low | Low | Low | Low | Some concerns | Some concerns |
| 5. | Chang et al. 2008 [17] | Low | Low | Low | Low | Low | Low |
| 6. | de Lucena et al. 2009 [18] | Some concerns | Low | Low | Low | Low | Some concerns |
| 7. | Doruk et al. 2008 [19] | Some concerns | Low | Low | Low | Low | Some concerns |
| 8. | Freudenreich et al. 2007 [20] | Low | Low | Low | Low | Low | Low |
| 9. | Friedman et al. 2011 [21] | Some concerns | Low | Low | Low | Low | Some concerns |
| 10. | Genç et al. 2007 [22] | Some concerns | High | Low | Low | Low | High |
| 11. | Gunduz-Bruce et al. 2013 [23] | Some concerns | Low | Low | Low | Low | Some concerns |
| 12. | Honer et al. 2006 [24] | Low | Low | Low | Low | Low | Low |
| 13. | Josiassen et al. 2005 [25] | Some concerns | Low | Low | Low | Low | Some concerns |
| 14. | Kelly et al. 2015 [26] | Low | Low | Low | Low | Low | Low |
| 15. | Lane et al. 2006 [27] | Low | Low | Low | Low | Low | Low |
| 16. | Lin et al. 2018 [28] | Low | Low | Low | Low | Low | Low |
| 17. | Lu et al. 2018 [29] | Low | Low | Low | Low | Low | Low |
| 18. | Mico et al. 2011 [30] | Low | Low | Low | Low | Low | Low |
| 19. | Muscatello et al. 2011 [31] | Low | Low | Some concerns | Low | Low | Some concerns |
| 20. | Muscatello et al. 2011 [32] | Low | Some concerns | Low | Low | Low | Some concerns |
| 21. | Muscatello et al. 2014 [33] | Low | Low | Low | Low | Low | Low |
| 22. | Shiloh et al. 1997 [34] | High | Low | Low | Low | Low | High |
| 23. | Tiihonen et al. 2003 [35] | Low | Low | Low | Low | Low | Low |
| 24. | Vayısoğlu et al. 2013 [36] | Low | Low | Low | Low | Low | Low |
| 25. | Weiner et al. 2010 [37] | Some concerns | Low | Low | Low | Low | Some concerns |
| 26. | Zhu et al. 2022 [38] | Low | Low | Low | Low | Low | Low |
| 27. | Zink et al. 2009 [39] | Some concerns | Low | Low | High | Low | High |
| 28. | Zoccali et al. 2004 [40] | Some concerns | Some concerns | Low | Low | Low | Some concerns |
| 29. | Zoccali et al. 2007 [41] | Low | Low | Low | Low | Low | Low |
| 30. | Evins et al. 2000 [42] | Low | Low | Low | Low | Low | Low |