Table 1.

Demographic profile of population-based study

CharacteristicsAlzheimer’s diseaseTotal at risk
* Indicates significant difference from the total at-risk group based on chi-square analysis.
n142920
Women, n (%)99 (69.7)631 (68.6)
Age, y (SD)77.2 (5.7)*75.1 (6.2)
Education, y (SD)7.1 (3.8)*9.0 (4.5)
Ethnic group, n (%)
African American57 (40.1)291 (31.6)
White21 (14.8)238 (25.9)
Hispanic62 (43.7)386 (42.0)
Smoking status, n (%)
Never79 (55.6)451 (49.0)
Past36 (25.4)325 (35.3)
Current27 (19.0)144 (15.7)