AF apoA-II > 45 μg/ml during SBP indicated an increased risk of death or transplantation within 90 days and remained a predictor of transplant or death after adjustment for age and MELD (adjusted hazard ratio, 2.59; 95% CI, 1.08–5.91; P = 0.032). Here, APOA2 is linked to atrial fibrillation.