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Table 2 Quality assessment for non-randomized trials

From: The efficacy and safety of topical administration of tranexamic acid in spine surgery: a meta-analysis

Quality assessment for non-randomized trials Ren 2017 CCT
A clearly stated aim 2
Inclusion of consecutive patients 2
Prospective data collection 0
Endpoints appropriate to the aim of the study 2
Unbiased assessment of the study endpoint 2
A follow-up period appropriate to the aims of study 2
Less than 5% loss to follow-up 2
Prospective calculation of the sample size 0
An adequate control group 2
Contemporary groups 2
Baseline equivalence of groups 2
Adequate statistical analyses 2
Total score 20