Study | Random sequence generation | Allocation concealment | Blinding of participants and personnel (performance bias) | Blinding of outcome assessment (detection bias) | Incomplete outcome date (attrition bias) |
---|---|---|---|---|---|
Anaya et al49 | Unclear risk | Unclear risk | Low risk | Unclear risk | Low risk |
Coates et al59 | Low risk | High risk | Low risk | Unclear risk | Low risk |
Lugada et al51 | Low risk | Unclear risk | Low risk | Unclear risk | Low risk |
Malonza et al50 | Low risk | Unclear risk | Low risk | Unclear risk | Low risk |
Read et al58 | Low risk | High risk | High risk | Unclear risk | Low risk |
Spielberg et al52 | Low risk | High risk | Low risk | Unclear risk | Low risk |
Sweat et al20 | Low risk | High risk | Low risk | Unclear risk | Low risk |
Walensky et al48 | Low risk | Unclear risk | Low risk | Unclear risk | Low risk |