Nearly all original cohort members (91%) were white, 4% were African-American, and the remaining were of other or unspecified origin.
Diagnosis & Evaluation Methods
For a detailed description, see Kukull WA et al. 2002.
Gray SL, Anderson ML, Crane PK, Breitner JC, McCormick W, Bowen JD, Teri L, Larson E. Antioxidant vitamin supplement use and risk of dementia or Alzheimer's disease in older adults. J Am Geriatr Soc. 2008 Feb;56(2):291-5.
Group Health Center for Health Studies. Aging and geriatrics, available at http://www.centerforhealthstudies.org/research/areas/aging_geriatrics.aspx. Accessed on Jun 12, 2009.
Kukull WA, Higdon R, Bowen JD et al. Dementia and Alzheimer disease incidence: A prospective cohort study. Arch Neurol 2002;59:1737–1746.