Table 2.
Risk of Bias in the Included Trialsa.
| Author (Year) | Randomization | Allocation Concealment | Patients Blinding | Assessor Blinding | Incomplete Outcome Data Addressed | Selective Outcome Reporting | Modified Jaded Scale |
|---|---|---|---|---|---|---|---|
| Bao et al19 (2018) | Low | Low | Low | Low | Low | Low | 5 |
| Yao et al23 (2016) | Low | Low | Low | Low | Low | Low | 5 |
| Jeong et al24 (2015) | High | Unclear | High | Unclear | Low | Low | 2 |
| Smith et al22 (2014) | Low | Low | Low | Low | Low | Low | 5 |
| Cassileth et al21 (2013) | High | Unclear | Unclear | Unclear | Low | Low | 2 |
| Cassileth et al20 (2011) | High | Unclear | Unclear | Unclear | Low | Low | 2 |
a
Modified Jadad Scale: Jadad AR, Moore RA, Carroll D, et al. Assessing the quality of reports of randomized clinical trials: is blinding necessary? Control Clin Trials. 1996;17:1-12.