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Table 3 Quality and bias assessment of human clinical studies using The Cochrane Collaboration’s Tool [17]

From: The effect of non-steroidal anti-inflammatory drugs on the osteogenic activity in osseointegration: a systematic review

Study Random sequence generation Allocation concealment Blinding of participants/personnel Blinding of outcome assessment Incomplete outcome data Selective reporting Summary assessment
Alissa et al. [21] + + + ? + + Unclear
Sakka et al. [24] + + + High
Winnett et al. [25] n/a ? + High
  1. Key: (+) = low risk of bias, (?) = unclear risk of bias, (−) = high risk of bias, n/a= not available