Assessment of bias in various domains in the randomized clinical trials included in the systematic review
| Study | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Concealment of outcome assessors | Incomplete outcome data | Selective reporting of results |
|---|---|---|---|---|---|---|
| Tenore et al. [28], 2017 | Low | Low | Low | Low | Low | Low |
| Chai et al. [27], 2012 | Low | Low | Low | Low | Low | Low |
| Koutsos et al. [25], 2020 | Low | Low | Unclear | Unclear | Low | Low |
| Vafa et al. [29], 2011 | Low | Low | Unclear | Unclear | Low | Low |
| Ravn-Haren et al. [26], 2013 | Low | Low | Low | Low | Low | Low |