Table 2.

Caregiver status and 8-year mortality rate among 1069 Caregiver-SOF respondents

Variables	% Died	Mortality rate per 1000 person-years	Unadjusted HR (95% CI)	Adjusted HR (95% CI)
Non-caregiver (n=694)	27.4	46.4	1.00	1.00
Caregiver (n=375)	19.7	29.8	0.62 (0.47–0.81)	0.74 (0.56–0. 89)
High vs. low perceived stress:
Early effect (years 1–3)				1.81 (1.16– 2.82)
Late effect (> 3 years)				0.96 (0.69– 1.33)
Age (in years)				1.09 (1.05–1.12)
Race: black vs. white				0.59 (0.35–1.00)
# IADL limitations				1.32 (1.20–1.44)
1 or more medical conditions				1.35 (1.02–1.79)
BMI (kg/meters2)a				0.98 (0.95–1.00)

^a= HR is for a 1-unit increase in BMI

HR= Hazards ratio

CI = Confidence Interval