Table 2.

Relative risk of ischemic heart disease first event and mortality comparing partnered to unpartnered women

	First IHD event	IHD mortality	Subdivisions of first IHD event		Survival
	IHD hospital admission or IHD death	All IHD deaths	IHD death with no prior hospital admission	IHD hospital admission	IHD death after hospital admission
Population at risk (n)	734,626	734,626	734,626	734,626	29,282
Cases (n)	30,747	2,148	1,465	29,282	683
	RR (95% CI)	RR (95% CI)	RR (95% CI)	RR (95% CI)	RR (95% CI)
Adjusted for age and region only	0.88 (0.85 to 0.90)	0.55 (0.51 to 0.61)	0.53 (0.47 to 0.59)	0.90 (0.88 to 0.93)	0.61 (0.52 to 0.72)
Additionally adjusted only for socio-economic factors a	0.91 (0.89 to 0.94)	0.59 (0.54 to 0.65)	0.57 (0.51 to 0.64)	0.94 (0.91 to 0.96)	0.63 (0.54 to 0.75)
Additionally adjusted only for lifestyle factors b	0.96 (0.94 to 0.99)	0.68 (0.62 to 0.74)	0.65 (0.58 to 0.72)	0.99 (0.96 to 1.02)	0.70 (0.59 to 0.82)
Additionally adjusted only for other factors c	0.88 (0.86 to 0.91)	0.56 (0.51 to 0.62)	0.54 (0.49 to 0.61)	0.91 (0.88 to 0.93)	0.62 (0.53 to 0.74)
Adjusted for all the above d	0.99 (0.96 to 1.02)	0.72 (0.66 to 0.80)	0.70 (0.62 to 0.78)	1.01 (0.98 to 1.04)	0.72 (0.60 to 0.85)

^aadjusted for age, region, area deprivation, age left school, highest educational qualification.

^badjusted for age, region, smoking, alcohol intake, strenuous exercise, body mass index, hormone replacement therapy use, sleep duration.

^cadjusted for age, region, happiness, treatment for depression, parity, employment, participation in group activities.

^dfully adjusted for age, region, area deprivation, age left school, highest educational qualification, smoking, alcohol intake, strenuous exercise, body mass index, hormone replacement therapy use, sleep duration, happiness, treatment for depression, parity, employment, participation in group activities.

CI, confidence interval; IHD, ischemic heart disease; RR, relative risk.