HRQoL after coronary artery bypass grafting and percutaneous coronary intervention for stable angina

Figures & data

Figure 1.  Inclusion flow chart of the patient material.

Table I.  Baseline characteristics.

Characteristics	CABG (n=240) %	PCI (n=229) %	p-value
Age, years (SD)	66.1 (8.8)	64.5 (10.2)	0.064
Sex
Female	20.6	31.4	0.004
Age groups			0.164
<65 yr	39.2	47.6
65 – 74 yr	44.2	36.7
>75 yr	16.7	15.8
LVEF			<0.001
< 30%	2.9	1.3
30 – 50%	42.1	17.9
> 50%	54.5	59.8
Previous MI	33.3	24.5	0.042
Hypertension	54.6	57.6	0.516
Hyperlipidaemia	73.3	69.4	0.359
Diabetes	25.8	18.3	0.059
COPD	10.0	10.0	1.000
ASO	10.8	8.3	0.433
Previous PCI	5.0	7.9	0.258
Previous CABG	3.3	8.3	0.028
NYHA Class			<0.001
Class I	2.1	11.4
Class II	44.2	45.0
Class III	47.9	39.7
Class IV	5.8	3.9
Data missing	0.4	21.3
LMCA stenosis>50%	29.6	2.2	<0.001
No. of diseased vessels			<0.001
3-VD	65.0	14.8
2-VD	28.8	34.9
1-VD	6.3	50.2

LVEF, left ventricular ejection fraction; MI, myocardial infarction; COPD, chronic obstructive pulmonary disease; ASO, arteriosclerosis obliterans (peripheral or carotid artery disease); NYHA, New York Heart Association; LMCA, left main coronary artery; VD, vessel disease.

Figure 2.  15D level score of the study groups at follow-up control points. Statistical difference is reported against preoperative level separately for CABG and PCI patients.

Table II.  Clinically noticeable change of HRQoL among the study groups.

	CABG		PCI
	No. of patients	%	No. of patients	%	p-value
Clinical improvement
0 – 6 months	113/231	48.9	82/224	36.6	0.008
0 – 36 months	86/216	39.8	58/210	27.6	0.010
Clinical impairment
0 – 6 months	50/231	21.6	56/224	25.0	0.438
0 – 36 months	78/216	36.1	69/210	32.9	0.541

Figure 3.  15D profiles and scores of the study cohort of CABG and PCI patients 36 months after treatment in comparison to the reference population. ^*p<0.05, **p<0.001.