Table 2.
Risk of bias summary showing review authors’ judgments about each risk of bias domain
| Domain | Cole et al. (2020) | Decosimo et al. (2019) | Waterman et al. (2018) | Kohrt et al. (2015) | Ng et al. (2006) | |
|---|---|---|---|---|---|---|
| Selection bias | Random sequence generation | U | L | U | H | L |
| Allocation concealment | U | U | U | U | L | |
| Performance bias | Blinding of participants and personnel | U | L | U | U | U |
| Detection bias | Blinding of outcome assessment | U | L | U | U | U |
| Attrition bias | Incomplete outcome data | L | L | L | L | L |
| Reporting bias | Selective reporting | L | L | L | L | L |
| Other bias | Other sources of bias | L | L | L | L | L |
L, low risk; H, high risk; U, unable to determine.