TABLE 4.
Risk of bias assessment according to Cochrane criteria for the studies regarding to effect of anthocyanins on liver enzymes
| Study (year) | Random Sequence Generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective outcome reporting | Other sources of bias |
|---|---|---|---|---|---|---|---|
| Asgary et al. (2016) | L | U | L | U | L | L | L |
| Chang et al. (2014) | U | U | L | U | L | L | L |
| Curtis et al. (2009) | L | U | L | U | L | L | L |
| Guo et al. (2014) | U | U | L | U | L | L | L |
| Wright et al. (2013) | U | U | L | U | L | L | L |
| Hassellund et al. (2013) | L | L | L | L | L | L | L |
| Kianbakht et al. (2013) | L | L | L | L | L | L | L |
| Kianbakht et al. (2014) | L | L | L | L | L | L | L |
| Kianbakht and Hashem‐Dabaghian (2019) | L | L | L | L | L | L | L |
| Mohtashami et al. (2019) | L | L | L | U | L | L | L |
| Oki et al. (2016) | U | U | L | U | L | L | L |
| Qin et al. (2009) | U | U | L | U | L | L | L |
| Soltani et al. (2015) | U | U | L | U | L | L | L |
| Soltani et al. (2014) | L | U | L | U | L | L | L |
| Suda et al. (2008) | U | U | L | U | L | L | L |
| Yang, Ling, Du, et al. (2017) and Yang, Ling, Yang, et al. (2017) | L | L | L | U | L | L | L |
| Zhang et al. (2015) | L | L | L | U | L | L | L |
| Stote et al. (2020) | L | U | L | U | L | L | L |
Abbreviations: H, high risk; L, low risk, U, unclear risk.