ROC analysis and comparison of predictive ability
Using in-hospital mortality events as an endpoint, AUC values were employed to compare the predictive ability of GNRI with that of other items (Figure 2). GNRI exhibited a greater AUC for in-hospital mortality (AUC: 0.718) than serum albumin level (AUC: 0.673), A-DROP score (AUC: 0.644) and BMI (AUC: 0.69) with a significant difference when compared with albumin (p = 0.0058).