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. 2023 Mar 31;66(2):E170–E180. doi: 10.1503/cjs.010021

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Fig. 3 — Blood transfusion rate for patients with hip fracture who received a vitamin K antagonist (VKA) compared to those who did not receive an anticoagulant (control). CI = confidence interval; MH = Mantel–Haenszel weighting; OR = odds ratio; SD = standard deviation.