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Plot showing the interaction between cohort and age for total ventricular volume and antero-posterior ratio. Model: Feature ∼ 1 + Cohort + Age + Cohort:Age + Sex + (1|ID)+(1|SITE). Abbreviations: MCI: mild cognitive impairment; AD: Alzheimer’s disease; BV: behavioral variant; SV: semantic variant; PNFA; progressive non-fluent aphasia.
