Review Article
Acupuncture for Tourette Syndrome: A Systematic Review
Table 3
Risk of bias assessment of included studies.
| Bias | Guo et al., 2004 [36] | Liu et al., 2010 [30] | Xu and Zhu, 2009 [33] | Zhang et al., 2015 [34] | Mu et al., 2009 [35] | Chi and Sun, 2004 [37] | Yang et al., 2007 [38] |
| Random sequence generation (selection bias) | Random number table (LR) | Random number table (LR) | NR (UR) | Random number table (LR) | Random number table (LR) | Random number table (LR) | Random number table (LR) |
| Allocation concealment (selection bias) | UR | UR | UR | UR | UR | UR | UR |
| Blinding of participants and personnel (performance bias) | HR | HR | HR | HR | HR | HR | HR |
| Blinding of outcome assessment (detection bias) | UR | UR | UR | UR | UR | UR | UR |
| Incomplete outcome data (attrition bias) | LR | LR | LR | LR | LR | LR | LR |
| Selective reporting (reporting bias) | UR | UR | UR | UR | UR | UR | UR |
| Other bias | LR | LR | LR | LR | LR | LR | LR |
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UR: unclear risk; LR: low risk; HR: high risk; NR: no reported.
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