Figure 1. Time to symptoms for participants who maintained a Clinical Dementia Rating of 0.
Kaplan-Meier curves showing time to symptoms on the (A) Neuropsychiatric Inventory Questionnaire, (B) Geriatric Depression Scale, and (C) Functional Activities Questionnaire for participants who maintained a Clinical Dementia Rating of 0 over the follow-up period. Curves labeled with multiple symptoms are representative of clusters of symptoms that tend to emerge at around the same time. atten. = attention; beh. = behaviors; dist. = disturbance; rem. appts. = remembering appointments.