Fig. 4From: Low calf circumference can predict nutritional risk and mortality in adults with metabolic syndrome aged over 80 yearsROC curve analysis of CC for nutritional risk AUC = 0.75 (P < 0.01); 95% CI, 0.70–0.79; CC cut-off point = 28.8 cm; Youden index = 0.40; sensitivity, 72.0%; specificity, 67.0%Back to article page