Fig. 6

Correlation analysis. CSF protein versus onset (A), Aβ 1–42 versus age (B), T-Tau versus NSE (C), Aβ 1–42 versus CSF pressure (D), T-Tau versus P-Tau (E) and NSE versus P-Tau (F) in Aß– and Aß+ patients. Pearson R2 values and significance level were calculated, and linear graphs adjusted according to the values. All time points of B, T1 and T2 are included in correlation analysis. AD−: Alzheimer negative, AD+ : Alzheimer positive. B: baseline visit (recruitment), T1: follow-up visit (< 6 month), T2: follow-up visit (> 6 month). Onset: Time since symptom onset; NSE: neuron-specific enolase; T-Tau: total Tau; P-Tau: Tau phosphorylated at threonine 181; Aβ42: Amyloid-β 1–42 protein