Quality assessment tool
| Measure | Smekal et al. (43) | Ferran et al. (44) | Witzel et al. (45) | Judd et al. (18) | Chen et al. (17) | Chen et al. (46) |
|---|---|---|---|---|---|---|
| Allocation concealment | 2 | 2 | 2 | 2 | 0 | 0 |
| Intention-to-treat analysis | 2 | 2 | 0 | 0 | 0 | 0 |
| Assessor blinding | 0 | 0 | 0 | 0 | 0 | 0 |
| Comparable baseline characteristics | 2 | 2 | 2 | 2 | 2 | 2 |
| Participant blinding | 0 | 0 | 0 | 0 | 0 | 0 |
| Treatment–provider blinding | 0 | 0 | 0 | 0 | 0 | 0 |
| Care program comparability | 2 | 2 | 2 | 2 | 0 | 1 |
| Defined inclusion and exclusion criteria | 2 | 2 | 2 | 2 | 2 | 2 |
| Well-defined interventions | 2 | 2 | 2 | 2 | 2 | 0 |
| Well-defined outcome measure | 2 | 2 | 2 | 2 | 2 | 2 |
| Clinically useful diagnostic tests | 2 | 2 | 2 | 2 | 2 | 2 |
| Adequate duration of follow-up | 2 | 2 | 2 | 2 | 2 | 2 |
| Score | 18 | 18 | 16 | 16 | 12 | 11 |