Table 3.

Sex-specific risk factors of 1-year mortality in the historical cohort (1994–1998)

Variable	Women	Men	Multiplicative interaction
	HR (95% CI)	HR (95% CI)	P value*
Age category
40–64 years	Reference	Reference	0.004
65–74 years	1.45 (1.32 to 1.59)	1.63 (1.51 to 1.75)
75–84 years	2.06 (1.89 to 2.24)	2.42 (2.25 to 2.60)
>85 years	3.53 (3.24 to 3.85)	3.70 (3.41 to 4.00)
Benign hypertension	0.70 (0.67 to 0.73)	0.82 (0.79 to 0.86)	<0.001
Myocardial infarction	1.26 (1.16 to 1.36)	1.02 (0.95 to 1.10)	<0.001
COPD/asthma	1.10 (1.05 to 1.16)	1.20 (1.15 to 1.25)	0.01
Renal disease	2.26 (2.04 to 2.50)	1.90 (1.74 to 2.07)	0.01
Diabetes	1.31 (1.25 to 1.38)	1.20 (1.14 to 1.26)	0.01

*Multiplicative interaction terms were formed by multiplying sex by each of the covariates in the multivariable Cox proportional hazard model for 1-year mortality. Only significant interaction terms (ie, ones demonstrating sex-specific risk factors) were reported in this table.

COPD, chronic obstructive pulmonary disease.