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Risk of bias of non-randomized trials.
| Study | Confounding | Selection | Measurement of intervention | Deviations from Intended Interventions | Missing Data | Measurement of outcomes | Reported results | Overall |
|---|---|---|---|---|---|---|---|---|
| D'Alessio et al. | Moderate | Moderate | Low | Serious | Low | Moderate | Moderate | Serious |
| Guidice et al. | Serious | Moderate | Low | Serious | Low | Moderate | Moderate | Serious |
| Cantini et al. | Moderate | Moderate | Low | Serious | Low | Moderate | Moderate | Serious |
Low Risk of Bias.
Moderate Risk of Bias.
Serious Risk of Bias.
