Table 4.
Cochrane collaboration tool was used to assess the risk of bias in randomized controlled trials.
|
S no |
Study | Selection Bias |
Blinding of outcome assessment(detection bias) | Incomplete outcome data(Attrition bias) | Selective reporting(reporting bias) | Anything else ideally pre-specified | |
|---|---|---|---|---|---|---|---|
| Random sequence generation | Allocation concealment | ||||||
| 1. | Wu et al., 2017 | Low bias | Low bias | Low bias | Low bias | Low bias | Low bias |
| 2. | Chrcanovic et al., 2017 | Low bias | Low bias | Low bias | Low bias | Low bias | Low bias |
| 3. | Altay et al., 2018 | Low bias | Low bias | Low bias | Low bias | Low bias | Low bias |
| 4. | Brendon et al., 2019 | Low bias | Low bias | Low bias | Low bias | Low bias | Low bias |