TABLE 2.

Proportions of variance accounted for and beta coefficients for each residency category when predicting pain interference from residency, age and behaviour risk, separately for men and women with different diagnoses

ICD-9			Coresident partners
			Significant other		Family		Nonfamily
	Male ΔR2	Female ΔR2	Men	Women	Men	Women	Men	Women
Chronic ischemic heart disease	0.008 (ns)	0.060**	0.12	0.10	0.09	0.31**	0.07	0.08
Chronic airway obstruction	0.023 (ns)	0.066**	0.07	0.21**	0.16	0.11	−0.05	−0.14
Disorders of the urinary tract	0.009 (ns)	0.089*	−0.09	−0.32**	0.01	−0.27	−0.06	0.11
Syncope and collapse, fainting, blackout	0.179*	0.026 (ns)	0.37	−0.07	0.55***	−0.09	0.12	−0.15
Abnormality of gait	0.035*	0.004 (ns)	0.25**	0.06	0.06	0.06	0.05	−0.03

The International Classification of Diseases, Ninth Revision (ICD-9) diagnostic codes are chronic ischemic heart disease (414.00); chronic airway obstruction (496.00); disorders of urethra (599.00); syncope and collapse, fainting, blackout (780.20); and abnormality of gait (781.20). The first set of columns represents the proportion of variance in pain interference accounted for by the three dummy-coded housemate variables for each sex, after controlling for patient age and behavioural risk factors. The remainder of the values shows standardized beta coefficients for the terms in the full models that correspond to coresidence with a significant other, a family member and someone else, respectively, using living alone as the reference category.

^*P<0.10;

^**P<0.05;

^***P<0.01. ns Not statistically significant