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Table 3 Odds ratio estimates for the intraoperative transfusion of blood

From: A retrospective evaluation of the impact of patient ethnicity on the use of epidural analgesia or blood transfusions in children undergoing major oncologic surgery

Perioperative variable Univariate OR (95% CI) p value Multivariate OR (95% CI) p value
ASA 3 or 4 3.56 (1.35, 9.40) 0.011 1.56 (0.41, 5.94) 0.514
BMI ≥ 25 1.84 (0.68, 4.98) 0.233 1.91 (0.44. 8.18) 0.386
Preoperative opioid use 1.00 (0.45, 2.21) 0.998 0.58 (0.19, 1.76) 0.335
Anesthesia duration 1.007 (1.005, 1.009) < 0.0001 1.007 (1.005, 1.009) < 0.001
Non-Caucasian 0.49 (0.25, 0.97) 0.040 0.77 (0.29, 2.04) 0.600
  1. ASA American Society of Anesthesiologists physical status score, BMI body mass index