Table 3.
Risk of bias (quality) assessment.
| Study | Selection (maximum 3 points) | Comparability (maximum 2 points) | Outcome (maximum 3 points) |
|---|---|---|---|
| Smith et al.11 | 2 | 2 | |
| Wallace et al.22 | 2 | 2 | 3 |
| Enohumah et al.25 | 3 | 2 | 3 |
| Yi et al.10 | 2 | 2 | 3 |
| Galhotra et al.23 | 2 | 3 | |
| Maia et al.12 | 2 | 1 | |
| Roessler et al.13 | 3 | 2 | |
| Gershengorn et al.26 | 3 | 1 | 3 |
| Schmittinger et al.14 | 2 | 2 | |
| Lee et al.24 | 3 | 1 | 2 |
| Efendijev et al.15 | 3 | 2 | 3 |
| Rozen et al.16 | 3 | 2 | 3 |
| Haerkens et al.17 | 3 | 2 | |
| Flato et al.18 | 2 | 1 | |
| Garcia Huertas et al.19 | 3 | 1 | |
| Chanthawong et al.20 | 2 | 2 | 3 |
| Perman et al.27 | 2 | 2 | 2 |
| Miana et al.21 | 2 | 1 | 3 |
| Cook and Thomas5 | 2 | 1 | 2 |
| Quinn et al.28 | 2 | 1 |