Table 2.

Association Between Age and Ethnicity and Participation in APOE genotyping and Banking of DNA (n=342). Data from the Spectrum Study.

Personal Characteristics	Allowed APOE genotyping		Allowed genotyping and banking of DNA
	unadjusted OR (95% CI)	adjusted OR (95% CI)	unadjusted OR (95% CI)	adjusted OR (95% CI)
Age 80 and older (reference: <80)	0.47 (0.23–0.94)	0.42* (0.20–0.87)	0.34 (0.18–0.61)	0.36* (0.19–0.68)
African-American (reference: white)	0.52 (0.27–1.00)	0.43** (0.20–0.89)	2.43 (1.23–4.79)	2.31** (1.10–4.89)

Note: Data were gathered from the Spectrum Survey, 2001–2003.

^*Adjusted for gender, education, ethnicity, SF-36, MMSE, CES-D, and BAI.

^**Adjusted for age, gender, education, SF-36, MMSE, CES-D, and BAI.

OR = odds ratio; CI = confidence interval.