Table 6 Cochrane Risk bias assessment tool for RCTs
Author, year [reference] | Sequence generation | Allocation concealment | Blinding | Incomplete data | Selective reporting | Other bias | Summary of the risk of bias |
|---|---|---|---|---|---|---|---|
Hoedemaekers, 2007 [38] | Unclear | Unclear | Unclear | Low | High | Low | High |
Pittl, 2013 [39] | High | Unclear | Unclear | Low | Low | High | High |
Deye, 2015 [40] | Low | Low | Unclear | Low | Low | Low | Low |
Look, 2017 [41] | Low | Low | Unclear | Low | Low | Unclear | High |