Domain | Zhi et al. (2012) | Belotti et al. (2016) | Clements et al. (2017) | Duangthip et al. (2017) | Vollú et al.(2019) |
---|---|---|---|---|---|
Selection bias Random sequence generation | – | + | + | – | – |
Selection bias Allocation concealment | + | + | + | – | – |
Reporting bias Selective reporting | + | + | + | – | – |
Other bias Other sources of bias | + | + | + | – | – |
Performance bias Blinding (participants and personnel) | + | ? | + | – | + |
Detection bias Blinding (outcome assessment) | + | ? | + | ? | + |
Attrition bias Incomplete outcome data | + | ? | – | – | – |