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Time from index visit to increase of ≥1 point on ≥4 items of the FAQ. FAQ, Functional Assessment Questionnaire; p, probability; prAD, probable Alzheimer’s disease. Note: Patients without ≥4 items on the FAQ with a severity <3 at the first visit with prAD were censored at that visit. Otherwise, patients were censored at the last visit with complete information about FAQ.
