Table 3 Risk of bias for randomized trials
Authors | Risk of bias arising from the randomization process | Risk of bias due to deviations from the intended interventions | Missing outcome data | Risk of bias in measurement of the outcome | Risk of bias in selection of the reported result | Overall risk of bias |
|---|---|---|---|---|---|---|
Parkin et al. [18] | Low | Low | Low | Low | Low | Low |
Smailiene et al. [19] | High | Low | Low | Low | Low | High |