Review Article
Moxibustion for Primary Dysmenorrhea at Different Interventional Times: A Systematic Review and Meta-Analysis
Table 2
Summary of risk of bias assessment for studies included.
| Study | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment or statistician | Complete outcome data | Selective reporting | Other sources of bias |
| Dong et al. 2014 [16] | + | ? | ? | ? | + | + | ? | Ren 2013 [17] | + | + | ? | ? | + | + | ? | Zhang et al. 2011 [18] | ? | ? | ? | ? | + | + | ? | Huang 2011 [19] | ? | ? | ? | ? | + | + | ? | Li and Yan 2015 [20] | ? | ? | ? | ? | + | + | ? | Huang and Si 2015 [21] | ? | ? | ? | ? | + | + | ? | Wen 2013 [22] | + | ? | ? | + | + | + | ? | Bai 2013 [23] | + | + | + | + | + | + | ? | Zhu and Fei 2011 [24] | + | ? | ? | ? | + | + | ? | Ji et al. 2011 [25] | + | ? | ? | ? | + | + | ? |
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“+” = low risk of bias; “?” = unclear risk of bias.
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