Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13195-019-0549-1/MediaObjects/13195_2019_549_Fig2_HTML.png)
Distribution of TP42/40 levels between Aβ-PET groups. Dots represent the individual TP42/40 ratio obtained for each patient with regard to their Aβ-PET status. Continuous lines represent mean TP42/40 values and standard mean error. The dashed line represents the Youden’s cutoff (0.1094) PET-Aβ positivity discrimination using TP42/40 alone. p value from the generalized linear model (GLM) was also included