The ROC curves shown in Figs 1 and 2 plot the sensitivity υ. 1 - specificity for total MNA score in predicting low serum albumin ( < 3.5 g/dl) and low BMI ( < 24 kg/m2) as markers of malnutrition. The AUC was found to be 0.69 (95% CI 0.39, 1.00) for albumin (P=0.12) and 0.74 (95% CI 0.67, 0.81) for BMI (P < 0.0001), indicating that the MNA test is relatively accurate in detecting malnourished people according to BMI but not according to serum albumin.