Table 2 Risk of bias table assessment result for the included studies
Study | Criteria for risk of bias assessment | ||||||
|---|---|---|---|---|---|---|---|
Random sequence generation | Allocation concealment | Blinding of participants & personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting | Other bias | |
BEAUTIFUL 2008 | LR | LR | LR | LR | LR | LR | UR |
SHIFT 2010 | LR | LR | LR | LR | LR | LR | UR |
SIGNIFY 2014 | LR | LR | LR | LR | LR | LR | UR |