Table 4.

Staged, weighted semi-parametric regressions of caregiver status and mental and physical HRQoL^a, Survey of the Health of Wisconsin, 2008–2010

	Mental HRQoL						Physical HRQoL
	Model 1			Model 2			Model 1			Model 2
	Beta	SE	p	Beta	SE	p	Beta	SE	p	Beta	SE	p
Linear Terms
Caregiver Status
Caregiver	−1.88	0.78	0.02	−0.68	0.76	0.37	−0.16	0.83	0.85	0.21	0.83	0.80
Non-Caregiver	REFERENCE			REFERENCE			REFERENCE			REFERENCE
Non-Linear Terms
			p			p			p			p
Global Stress			--			0.00			--			0.00
Linear Terms
Caregiver Status
Non-caregiver	REFERENCE			REFERENCE			REFERENCE			REFERENCE
Low strainb	2.06	0.83	0.01	0.83	0.78	0.29	1.05	1.26	0.41	0.68	1.23	0.58
Middle-low strainb	−2.09	1.20	0.08	−1.20	1.24	0.33	0.86	1.58	0.59	1.27	1.54	0.41
Middle-high strainb	−2.63	1.71	0.13	−0.59	1.46	0.69	0.19	1.33	0.88	0.71	1.40	0.61
High strainb	−7.12	1.64	0.00	−2.50	1.68	0.14	−4.23	1.95	0.03	−3.03	2.09	0.15
Non-Linear Terms
			p			p			p			p
Global Stressc			--			0.00			--			0.00

^aShort Form-12 version 2

^bCaregiver Strain Index

^cGlobal Perceived Stress Scale

HRQoL: Health-related quality of life; SE: Standard error.

Model 1: Associations between caregiver status and HRQoL, controlling for age, gender, race/ethnicity, marital status, employment status, household composition, education, insurance type, and income.

Model 2: Global stress was added to Model 1.