Table 4.

Relative risk estimates forAPOE-ε4 status

Risk factorsTotal at risk, nAD, n (%)Relative risk estimates [95% CI]
* Multivariate analysis adjusted for education and ethnicity.
Tobacco use in APOE-ε4 carriers
Never11824 (20.3)1.0 reference*
Past10314 (13.6)0.8 [0.4–1.5]
Current417 (17.1)1.4 [0.6–3.3]
Tobacco use in non–APOE-ε4 carriers
Never33652 (15.5)1.0 reference*
Past21018 (8.6)0.6 [0.3–1.1]
Current10018 (18.0)2.1 [1.2–3.7]