Review Article
Acupuncture for Posttraumatic Stress Disorder: A Systematic Review of Randomized Controlled Trials and Prospective Clinical Trials
Table 2
Cochrane risk of bias of included randomized controlled trials.
| First author [ref] (Year) | Hollifield [18] (2007) |
Zhang [25] (2010) |
Zhang [26](2010) | Zhang [27] (2011) |
| (1) Random sequence generation (selection bias) | L (computerized randomization) | L (computerized randomization) | U | U | (2) Allocation concealment (selection bias) | L (central allocation) | L (sequentially numbered, opaque sealed envelopes) | U | U | (3) Blinding of participants (performance bias) | H | H | H | H | (4) Blinding of outcome assessment (detection bias) | L (mentioned) | L (mentioned) | U | U | (5) Incomplete outcome data (attrition bias) | L (mentioned) | U | U | U | (6) Selective reporting (reporting bias) | U | U | U | U | (7) Other sources of bias (other bias) | U | U | U | U |
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L: low risk of bias; H: high risk of bias; U: unclear.
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