Risk of bias for the included studies
| Bias domain | ||||||
|---|---|---|---|---|---|---|
| Study | Sequence generation | Allocation concealment | Blinding | Withdrawals | Selective outcome reporting | Other |
| RITA-I | Low | Low | Low | Low | Low | Low |
| EAST | Unclear | Unclear | Low | Low | Low | Unclear |
| CABRI | Unclear | Low | Low | Low | Low | Low |
| BARI | Low | Low | Low | Low | Low | Low |
| AWESOME | Low | Unclear | Low | Low | Low | Low |
| ERACI-II | Low | Unclear | Low | Low | Low | Low |
| ARTS-I | Unclear | Unclear | Low | Low | Low | Low |
| SOS | Unclear | Unclear | Low | Low | Low | Low |
| MASS-II | Unclear | Unclear | Low | Low | Low | Unclear |
| CARDia | Low | Low | Low | Low | Low | Low |
| SYNTAX | Low | Low | Low | Low | Low | Low |
| PRECOMBAT | Low | Low | Low | Low | Low | Low |
| FREEDOM | Low | Low | Low | Low | Low | Low |
| VA-CARDS | Unclear | Unclear | Low | Low | Low | Low |
| BEST | Low | Low | Low | Low | Low | Low |