Supplementary Table 5.
Quality of evidence assessment of the included studies (results of the Cambridge Quality Checklist,21 Cochrane risk of bias for randomized controlled trials22)
| Study | Type of study | Cambridge Quality Checklists | Cochrane risk of bias for RCTs (risk of bias) | ||
|---|---|---|---|---|---|
|
| |||||
| Checklist for correlates | Checklist for risk factors | Checklist for causal risk factors | |||
| Sharma et al.41 | Retrospective cohort study | 3 | 2 | 4 | - |
| Barnouin et al.42 | RCT | 4 | 3 | 7 | High |
| Shores et al.36 | Retrospective cohort study | 3 | 2 | 4 | - |
| Maggi et al.32 | Retrospective study | 3 | 3 | 6 | - |
| Ramasamy et al.33 | Retrospective study | 0 | 2 | 4 | - |
| Behre et al.24 | RCT | 2 | 3 | 7 | High |
| Brock et al.40 | RCT | 3 | 3 | 7 | High |
| Brock et al.37 | RCT | 2 | 3 | 7 | Some concerns |
| Snyder et al.25 | RCT | 3 | 3 | 7 | High |
| Tan et al.43 | RCT | 2 | 3 | 7 | High |
| Srinivas-Shankar et al.44 | RCT | 4 | 3 | 7 | High |
| Basaria et al.38 | RCT | 4 | 3 | 7 | High |
| Hildreth et al.26 | RCT | 3 | 3 | 7 | High |
| Ng Tang Fui et al.27 | RCT | 3 | 3 | 7 | High |
| Basaria et al.28 | RCT | 3 | 3 | 7 | High |
| Vigen et al.6 | Retrospective cohort study | 2 | 2 | 5 | - |
| Cheetham et al.39 | Retrospective cohort study | 2 | 2 | 5 | - |
| Traish et al.34 | Observational study | 3 | 2 | 5 | - |
| Emmelot-Vonk et al.29 | RCT | 2 | 3 | 7 | High |
| Aversa et al.30 | RCT | 1 | 3 | 1 | High |
| Ho et al.31 | RCT | 1 | 3 | 7 | High |
| Yassin et al.35 | Prospective controlled registry study | 2 | 3 | 5 | - |
| Muraleedharan et al.45 | Observational study | 1 | 2 | 5 | - |
| Eisenberg et al.46 | Observational study | 3 | 3 | 5 | - |
RCT: randomized controlled trial