Fig. 1From: Diagnostic values of serum cathepsin B and D in patients with nasopharyngeal carcinomaReceiver operating characteristic (ROC) analysis of cathepsin B (CTSB). The area under the curve (AUC) of CTSB is 0.525 [95 % confidence interval (CI) 39.7 – 65.2]. Cutoff value of 12.4 mg/L had a sensitivity of 61.9 % and a specificity of 63.2 %Back to article page