Short-term outcomes of surgical myocardial revascularization on health-related quality of life: a validation of the Arabic MacNew heart disease questionnaire

The Cardiothoracic Surgeon

Table 3 Multiple linear regression analysis of follow-up independent predictors of physical, emotional, social, and global QOL-normalized difference score after 6 months of CABG surgery

Predictors	Physical domain difference score		Emotional domain difference score		Social domain difference score		Global domain difference score
	B	p	B	p	B	p	B	p
Preoperative EF	0.54	≤ 0.001	0.49	≤ 0.001	0.44	≤ 0.001	0.52	≤ 0.001
Occupation	0.31	0.02			0.32	0.02	0.29	0.02
Diabetes	−0.25	0.03					−0.24	0.03
Hypertension	−0.28	0.009	−0.33	0.004	−0.31	0.005	−0.31	0.006
Smoking	−0.53	0.001	−0.42	0.01	−0.42	0.01	−0.41	0.02
Peripheral vascular disease (PVD)	−0.53	0.05	−0.81	0.005	−0.62	0.03	−0.76	0.008
Gastrointestinal disease			−0.39	0.02
Angina grade							0.20	0.02
Constant	0.445		0.179		0.123		0.316
R²	0.21		0.19		0.17		0.20
F	6.094		5.461		4.694		5.676
P	≤ 0.001		≤ 0.001		≤ 0.001		≤ 0.001

Coding of variables included in the model:
0 was given for not working, no PVD, no smoking, no diabetes, no gastrointestinal disease, low angina class (CCS1-CCS2), and EF ≥ 40%
1 was given for working, PVD, smoking, diabetes, presence of gastrointestinal disease, high angina class (CCS3-CCS4), and EF < 40%