Abstract
To compare relative frequencies of apolipoprotein E (APOE) alleles in African-American and Caucasian populations and test associations with cognition, we studied two community-based samples: one of 253 African Americans and another of 466 Caucasians age 60-84 years. Logistic regression, adjusting for age, sex, education, and history of hypertension and diabetes was used to associate APOE with five cognitive measures. The APOE-ε4 allele frequency was 29.5% in African Americans and 12.1% in Caucasians. In the African Americans, no association was found between the presence of the APOE-ε4 allele and any of the cognitive measures. Among Caucasians, APOE-ε4 carriers performed more poorly on three of the five tests. We also report a considerably higher frequency of the APOE-ε4 allele in our African-American sample compared to other US-based studies.
Original language | English (US) |
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Pages (from-to) | 9-15 |
Number of pages | 7 |
Journal | Ethnicity and Disease |
Volume | 16 |
Issue number | 1 |
State | Published - 2006 |
Keywords
- Apolipoproteins E
- Cognition
- Gene frequency
- Racial groups
ASJC Scopus subject areas
- Epidemiology