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Table 2 Assessment of the quality of the studies based on the Newcastle–Ottawa Scale

From: The efficacy and safety of tranexamic acid in high tibial osteotomy: a systematic review and meta-analysis

Study Selection (out of 4) Comparability (out of 2) Outcomes (out of 3) Total (out of 9)
(1) (2) (3) (4) (5) (6) (7)
Chen * * * * *   *   6
Kim * * * * *   * * 7
Ni * * * * **   * * 8
Palanisamy * * * * ** *    7
Suh * * * * **   *   7
  1. (1) Representativeness of the exposed cohort, (2) selection of the non-exposed cohort, (3) ascertainment of exposure, (4) demonstration that outcome of interest was not present at start of study, (5) assessment of outcome, (6) was follow-up long enough for outcomes to occur, (7) adequacy of follow-up of cohorts