Table 3.

Predictors of physical and mental quality of life (PCS, MCS) in hierarchical regression analysis across independent Dutch and Slovak CABG patient samples.

SF-36	Slovak			Dutch			Slovak			Dutch
	PCS β	R2/ΔR2	smc	PCS β	R2/ΔR2	smc	MCS β	R2/ΔR2	smc	MCS β	R2/ΔR2	smc
Model 1
Gender	−0.39***			−0.21*			−0.19*			−0.23*
Age	−0.30**			−0.23*			−0.24*			−0.21*
Education	0.17*			0.14			0.20*			0.09
Smoking status	−0.14*			−0.07			−0.24*			−0.03
		0.22/0.22	***		0.06/0.06	ns		0.10/0.10	ns		0.11/11	ns
Model 2
Gender	−0.22*			−0.21*			−0.18*			−0.39***
Age	−0.23*			−0.22*			−0.25*			−0.28*
Education	0.17*			0.14			0.22*			0.06
Smoking status	−0.13*			−0.01			−0.20*			−0.01
Functional status	−0.36***			−0.19*			−0.14			−0.13
LVEF	0.19*			0.21*			0.04			0.03
History of MI	−0.23*			−0.24*			−0.18*			−0.11*
History of diabetes	−0.21*			−0.17*			−0.10			−0.09
		0.41/0.19	**		0.20/0.14	*		0.16/0.06	ns		0.17/0.06	ns
Model 3
Gender	−0.30**			−0.22*			−0.03			−0.37**
Age	−0.25*			−0.23*			−0.27*			−0.28*
Education	0.29**			0.09			0.21*			0.02
Smoking status	−0.15*			−0.04			−0.21*			−0.01
Functional status	−0.40***			−0.28**			−0.09			−0.03
LVEF	0.23*			0.25**			0.04			0.02
History of MI	−0.22*			−0.24*			−0.11*			−0.12*
History of diabetes	−0.23*			−0.15*			−0.11			−0.03
Symptoms of depression	−0.19*			−0.39**			−0.22*			−0.35**
Symptoms of anxiety	−0.08			−0.02			−0.42***			−0.45***
Social support	0.23*			0.06			0.22*			0.02
Type D personality	−0.25*			−0.23*			−0.26*			−0.31**
		0.56/0.15	**		0.48/0.28	**		0.60/0.44	***		0.52/0.35	***

smc: significance of model change for the added variables to the preceding model (F change test); CABG: coronary artery bypass grafting; SF-36: Short Form Health Survey 36; PCS: physical health component summary; MCS: mental health component summary; LVEF: left ventricular ejection fraction; MI: myocardial infarction.

Statistically significant values are in bold.

^*P<0.05; **P<0.01; ***P<0.001.