Table 5.

Unadjusted and Adjusted Hazard Ratios for 2-Year Mortality, 1993 and 2002 Cohorts

	1993			2002
	Unadjusted	Age- and Sex-Adjusted	Fully-Adjusted†	Unadjusted	Age- and Sex-Adjusted	Fully-Adjusted†
Cognitive Function
Normal	Ref.	Ref.	Ref	Ref.	Ref.	Ref.
Mild CI	2.24 (1.85 – 2.72)	1.90 (1.56 – 2.30)	1.57 (1.23 – 2.00)	2.16 (1.59 – 2.94)	1.82 (1.34 – 2.47)	1.03 (0.65 – 1.65)
Mod / Sev CI	3.36 (2.74 – 4.13)	2.53 (2.04 – 3.14)	1.84 (1.41 – 2.40)	4.12* (3.22 – 5.26)	3.11‡ (2.34 – 4.12)	1.88 (1.33 – 2.65)
Education (years)
< 12			Ref.			Ref.
12			0.86 (0.70 – 1.04)			0.82 (0.66 – 1.02)
13 – 15			0.85 (0.68 – 1.06)			0.64 (0.51 – 0.81)
≥ 16			0.84 (0.59 – 1.21)			0.88 (0.66 – 1.19)
Cog Function X Education
Mild CI X 12			1.44 (0.70 – 2.95)			3.65 (1.74 – 7.67)
Mild CI X 13 – 15			0.63 (0.06 – 6.59)			2.87 (1.05 – 7.90)
Mild CI X ≥ 16			2.25 (0.95 – 5.34)			0.40 (0.04 – 3.73)
Mod / Sev CI X 12			1.85 (1.05 – 3.28)			1.71 (0.85 – 3.44)
Mod / Sev CI X 13 – 15			2.69 (1.20 – 6.00)			2.93 (1.06 – 8.07)
Mod / Sev CI X ≥ 16			1.14 (0.32 – 4.05)			2.44 (0.78 – 7.62)

^†Fully-adjusted model includes cognitive function, age, race, gender, net worth, education, potential caregiver network, chronic conditions, smoking status, and cognitive function X education level interaction terms.

CI is cognitive impairment.

95% Confidence intervals are in parentheses.

^*P=0.08 for comparison of unadjusted HR in 2002 vs. 1993 (4.12 vs. 3.36).

^‡P=0.09 for comparison of age- and sex-adjusted HR in 2002 vs. 1993 (3.11 vs. 2.53).