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Table 4 Risk of bias assessment of the included studies

From: Accuracy of virtual planning in orthognathic surgery: a systematic review

Quality criteria for studies Sample randomization Blind assessment Statistical analysis Defined inclusion and exclusion criteria Report of follow-up Risk of bias assessment
De Rio et al. 2017, Italy [35] No No Yes Yes Yes Medium Risk
Ritto et al. 2017, Brazil [36] No No Yes Yes Yes Medium Risk
Ho et al. 2017, Taiwan [1] No No Yes Yes Yes Medium Risk
Chin et al. 2017, Germany [37] No No Yes Yes Yes Medium Risk
Stokbro et al. 2016 USA [38] Yes Yes Yes Yes Yes Low Risk
Baan et al. 2016, Netherlands [39] Yes No Yes Yes No Medium Risk
Zhang et al. 2016, China [40] No No Yes No No High Risk
De Rio et al. 2014, Italy [41] Yes No Yes Yes No Medium Risk
Hsu et al. 2013, USA [6] No Yes Yes Yes Yes Medium Risk
Sun et al. 2013, Belgium [7] No No Yes Yes Yes Medium Risk
Zinser et al. 2013, Germany [42] No No Yes Yes Yes Medium Risk
Centenero and Hernández-Alfaro. 2012, Spain [43] No No Yes Yes Yes Medium Risk
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