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The 90+ study is a longitudinal study of aging and cognition that began in 2003 to study the oldest-old (people aged 90 years and older), the fastest growing age group in the United States. Follow the link here for more information:

Study Participants

More than 1,600 participants are enrolled in this study and are visited every six months. NCRAD receives samples from prospectively followed subjects and has samples available for request from over 200 participants.

Available Data

Longitudinal data including demographics, family history, neuropsychological testing, neurological examination and cognitive status (normal, dementia, or cognitive impairment/no dementia). A minimal dataset is available through the NCRAD catalog and the full dataset is available by request from University of California Irvine.

Available Biospecimens

Genomic DNA