Author | Overall risk of bias | Confounding | Selection of participants | Measurement of interventions | Departures from intended interventions | Missing data | Measurement of outcomes | Selection of the reported result |
---|---|---|---|---|---|---|---|---|
[29] | Low | Low | Low | Low | Low | Low | Low | Low |
Bertsche et al. [30] | Serious | Low | Moderate | Low | No information | Low | Serious | Moderate |
Coleman et al. [34] | Serious | Low | Low | Low | No information | Serious | Serious | Moderate |
Hountz et al. [42] | Serious | No information | Low | No information | No information | Low | No information | Low |
Patil et al. [50] | Serious | Serious | No information | Serious | Low | Serious | Low | Low |
Phillips et al. [51] | Serious | No information | Low | Low | No information | Low | Serious | Moderate |
Raj et al. [52] | Serious | Low | Low | Low | No information | Low | Serious | Moderate |
Ray-Coquard et al. [54] | Serious | Moderate | Low | Low | No information | Low | Serious | Moderate |
Ray-Coquard et al. [55] | Serious | Moderate | Low | Low | Low | Low | Serious | Moderate |