Author and year | Bias due to confounding | Bias in selection of participants into the study | Bias in classification of interventions | Bias due to deviations from intended interventions | Bias due to missing data | Bias in measurement of outcomes | Bias in selection of the reported result | Overall risk of bias |
---|---|---|---|---|---|---|---|---|
Matt J 2020 | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Hu Z 2020 [15] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Shen 2020 [16] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Lagier 2020 [17] | Moderate | Low | Low | Low | Moderate | Low | Low | Serious |
Cheng 2020 [18] | Moderate | Moderate | Low | Low | Moderate | Moderate | Low | Moderate |
Wang 2020 [19] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Law 2020 [20] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Cheng 2020b [21] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |
Bai 2020 [22] | Moderate | Low | Low | Low | Moderate | Moderate | Low | Moderate |