Receiver operated characteristic (ROC) curves for the established scoring systems and serum transferrin in relation to 28-day (a) and 90-day (b) mortality. Baseline values were considered for all analyses. The area under the receiver operated characteristic (AUROC) was numerically enhanced by the combination of a baseline scoring system and serum transferrin for 28-day mortality (c), but there was little impact on the AUROC for 90-day mortality (d). DF, discriminant function; GAHS, Glasgow alcoholic hepatitis score; MELD, model for end-stage liver disease; TF, transferrin.