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Table 2 Quality assessment and modified Jadad score of included 6 randomized controlled trials

From: The efficacy and safety of combined administration of intravenous and topical tranexamic acid in primary total knee arthroplasty: a meta-analysis of randomized controlled trials

Studies (years) Random sequence generation Allocation concealment Blinding Incomplete outcome data Selective reporting Other bias Modified Jadad score
Huang (2014) [16] Low Low Low Low Low Low 8
Liu (2015) [19] Unclear Unclear Unclear Low Low Low 4
Jain (2016) [17] Low Low Low Low Low Low 7
Nielsen (2016) [22] Low Low Low Low Low Low 8
Lee (2017) [23] Low Low Unclear Low Low Low 6
Song (2017) [24] Low Low Low Low Low Low 7
  1. Abbreviation: Low:low risk of bias; Unclear: unclear risk of bias; High: high risk of bias