Restrictive versus Liberal blood transfusion strategies for patients undergoing orthopedic surgery: a meta-analysis of randomised trials with trial sequential analysis.

J Orthop Surg Res · 2025 · PMC12102801 · PMID 40410779

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may be significantno p-value reported

I 2 < 50% is considered to have insignificant heterogeneity, while I 2 > 50% indicates that heterogeneity may be significant.

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