Table 8 Risk of bias rating for relative gene expression [48, 49]
Risk of Bias Criteria | Guida et al. [43] | Liu et al. [44] | Chen and colleagues | |
|---|---|---|---|---|
Wang et al. [25] | Cao et al. [1] | |||
Randomisation | Outcome not assessed | + | + | + |
Allocation Concealment | Outcome not assessed | + | + | + |
Identical experimental conditions | Outcome not assessed | + | NR | NR |
Blinding of researchers during study | Outcome not assessed | NR | NR | NR |
Incomplete outcome data | Outcome not assessed | NR | NR | NR |
Exposure characterisation | Outcome not assessed | ++ | ++ | NR |
Blinding of outcome assessors | Outcome not assessed | NR | NR | NR |
Outcome reporting | Outcome not assessed | NR | NR | NR |
Other sources of bias | Outcome not assessed | − | − | − |
