Alzheimer’s Disease Dementia as the Diagnosis Best Supported by the Cerebrospinal Fluid Biomarkers: Difference in Cut-Off Levels from Thai Experience

Figure 4

The receiver operating characteristic (ROC) curve showed mean + SD of the area under the curve (AUC) of CSF pTau/beta-amyloid 1-42 for the diagnosis of AD. (AD = 14 and non-AD dementia = 10). AUC = 0.750, SE = 0.102, 𝑃=0.04^∗. At the cut-off level 0.1085, it gives the sensitivity of 71.4% and specificity of 70%. SD: standard deviation, SE: standard errors, ROC: receiver operating characteristic curve, AD: Alzheimer’s disease,^∗𝑃<0.05.