摘要 : Background: Although evidence supports an increased risk of mortality after major trauma among patients with type O blood, the relationship between patient blood type and clinical outcomes aside from mortality has not been fully e... 展开 Background: Although evidence supports an increased risk of mortality after major trauma among patients with type O blood, the relationship between patient blood type and clinical outcomes aside from mortality has not been fully elucidated. Objective: To examine the relationship between patient blood type and time to hemostasis after trauma and massive transfusion. Methods: A secondary analysis of the Pragmatic, Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial was performed (N=544). Blood type was dichotomized into type O versus non-type O. It was hypothesized that patients with non-type O blood would achieve hemostasis more quickly owing to the theoretical presence of increased clotting factors. Bivariate analysis and multiple Cox regression were conducted to test this assumption. Results: No significant difference was found in time to hemostasis between patients with type O blood and those with non-type O blood. However, mechanism of injury, diastolic blood pressure, and international normalized ratio affected the time to hemostasis in these trauma patients. Conclusion: This study showed no significant difference in time to hemostasis by blood type. 收起