Legend: Bars are presented as means, with error bars indicating ±SD. INR, International Normalized Ratio; PTT, partial thromboplastin time; INR-TF, INR≥1.4 and PTT<35; PTT-CONTACT, INR<1.4 and PTT≥35; BOTH, INR≥1.4 and PTT≥35; PRBC, packed red blood cells; FFP, fresh frozen plasma; 24h, 24 hours after admission; 72h, 72 hours after admission. PRBC, FFP, and platelet totals represent units transfused within 24 or 72 hours of admission.