Fig. 2From: Transcranial sonography with clinical and demographic characteristics to predict cognitive impairment in PD: a longitudinal studyROC curve of N-CI and CI (F-CI and L-CI). The area under ROC curve (AUC) of age of onset and age of first treatment were 0.702 (95%CI: 0.606–0.798) and 0.704 (95%CI: 0.610–0.798), respectivelyBack to article page