Table 4.

Cox proportional hazards models of cholesterol quartiles for AD

	HR and 95% CI
Model 1
<198 mg/dl	reference
198–220 mg/dl	1.26 (0.97–1.63)
221–248 mg/dl	1.43 (1.11–1.85)∗
249–500 mg/dl	1.64 (1.27–2.12)∗
Model 2
<198 mg/dl	reference
198–220 mg/dl	1.25 (0.96–1.63)
221–248 mg/dl	1.31 (1.01–1.71)∗
249–500 mg/dl	1.58 (1.22–2.06)∗

Model 1 is unadjusted. Model 2 is adjusted for age (as time scale), sex, education, race/ethnic group, midlife BMI, diabetes, hypertension and late-life stroke.

^∗p ≤ 0.05.