Similarly, ASA score and blood transfusion were evaluated at the univariate level but were not retained in the final models because ASA did not reach statistical significance (p = 0.063) and blood transfusion, while significant (p = 0.042), is a perioperative variable with substantial overlap with other model components.
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Predicting 90-Day Mortality After Geriatric Hip Fracture Using Combined Preoperative and Perioperative Risk Factors.
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0.0630
0.0630