ALB and delirium: Algorithm discrimination performance of albumin alone (AUC = 0.770; 95% CI, 0.750–0.790) and CONUT (AUC = 0.762; 95% CI, 0.750–0.790; p = 0.275) for delirium were not significantly different; however, discrimination was superior to that of the GNRI (AUC = 0.729; 95% CI, 0.706–0.753; p < 0.001) and PNI (AUC = 0.728; 95% CI, 0.706–0.751; p < 0.001).