Fig. 1From: Neutrophil-lymphocyte ratio as a predictor of delirium in older internal medicine patients: a prospective cohort studyROC curves for NLR (AUC (95 % confidence interval): 0.714 (0.66–0.77)), neutrophil count (0.667 (0.63–0.70)), and lymphocyte count (0.665 (0.63–0.70)), in predicting delirium. The best cut-point value of NLR to predict delirium was 3.626 (Youden index: 0.386). The curve of NLR demonstrated a larger AUC than the curves of neutrophil count and lymphocyte countBack to article page