Fig. 2

Distribution of baseline standardised uptake value ratio (SUVr) values by baseline status (control subjects, significant memory complaint [SMC], mild cognitive impairment [MCI], Alzheimer’s disease [AD]) in the cross-sectional cohort and by last known status (normal, MCI, AD) in the longitudinal cohort. Boxes represent IQRs. Whiskers correspond to mean ± 1.5 SD. CTL Control, NL Normal, ns Not significant