Patients’ and partners’ health-related quality of life before and 4 months after coronary artery bypass grafting surgery

Table 6 Multiple logistic regression predicting partner’s post-operative mental health (MCS)

Partner’s post-op mental health (MCS) (dependent variable)							95.0% C.I
	Beta	S.E.	Wald	d	p	Lower	Upper
Partner pre-op (independent) variables
Step 1: chi square = 17.895, -2 Log Likelihood = 93.008, R = 200, Nagelkerke R ² = .267
PCS	-.056	.025	4.860	1	0.027*	.900	.994
MCS	-.067	.025	.6.975	1	0.008*	.890	983
Step 2: chi square =17.897, -2 Log Likelihood =93.006, R = .200, Nagelkerke R ² = .267
PCS	-.055	.027	4.363	1	0.037*	.898	.997
MCS	-.066	.032	4.169	1	0.041*	.879	.997
EFD	-.001	.024	.002	1	0.963	.952	1.048
Step 3: chi square = 0.999, -2 Log Likelihood = 83.268, R = .373, Nagelkerke R ² = .389
PCS	-.057	.027	4.432	1	0.035*	.896	.996
MCS	-.006	.032	4.090	1	0.043*	.879	.998
EFD	-.007	.032	.045	1	0.781	.945	1.078
PSFD	.009	.034	.077	1	0.781	.945	1.078
Constant	5.639	1.683	14.389	1	0.001	-	-
Patient pre-op (independent) variables
Step 1: chi square = 6.645, -2 Log Likelihood = 103.683, R = .086, Nagelkerke R ² = .115
PCS	-.020	.026	.568	1	0.451	.931	1.032
Step 2: chi square = 6.645,-2 Log Likelihood = 103.683, R = .086, Nagelkerke R ² = .115
PCS	.060	.042	2.017	1	0.156	.978	1.152
Physical limitation	-.039	.018	4.791	1	0.029*	.928	.996
Angina freq/severity	.001	.017	.003	1	0.956	.968	1.034
Step 3: chi square = 4.634,-2 Log Likelihood = 99.049, R = .138, Nagelkerke R ² = .184
PCS	.062	.044	1.969	1	0.161	.976	1.161
Physical limitation	-.042	.019	5.089	1	0.024*	.924	.994
Angina freq/severity	.000	.017	.000	1	0.983	.967	1.034
Age	.057	.028	4.258	1	0.039*	1.003	1.118
Constant	−3.559	1.983	3.219	1	0.073	-	-

PCS physical component score, MCS mental component score, EFD emotion functional dimension, angina freq/severity angina frequency and severity, PSFD physical and social functional dimension, post-op post-operative, * p < 0.005.

ISSN: 1472-6955