Table 1 Baseline characteristics for randomised participants, by group and overall
Intervention ( n = 25) | Control ( n = 25) | Overall ( n = 50) | |
|---|---|---|---|
Age (years), n (%) | 25 (100) | 25 (100) | 50 (100) |
Mean (SD) | 62.7 (9.6) | 64.6 (9.0) | 63.6 (9.3) |
Median (IQR) | 61.0 (56.5,71.4) | 67.1 (59.2, 71.1) | 63.6 (56.5, 71.4) |
Min, max | 40.3, 75.3 | 48.1, 78.8 | 40.3, 78.8 |
Gender, n (%) | |||
Female | 1 (4.0) | 7 (28.0) | 8 (16.0) |
Male | 24 (96.0) | 18 (72.0) | 42 (84.0) |
BMI (kg/m2),n (%) | 25 (100) | 25 (100) | 50 (100) |
Mean (SD) | 29.6 (3.7) | 28.2 (4.3) | 28.9 (4.0) |
Median (IQR) | 29.5 (26.4, 32.1) | 28.0 (24.6, 30.7) | 28.8 (25.4, 30.9) |
Min, max | 23.6, 38.0 | 20.7, 37.0 | 20.7, 38.0 |
Pre-operative presentation | |||
Angina CCS grade, n (%) | |||
Class I | 8 (32.0) | 9 (36.0) | 17 (34.0) |
Class II | 9 (36.0) | 10 (40.0) | 19 (38.0) |
Class III | 3 (12.0) | 2 (8.0) | 5 (10.0) |
Class IV | 5 (20.0) | 3 (12.0) | 8 (16.0) |
Missing | 0 (0.0) | 1 (4.0) | 1 (2.0) |
Dyspnoea NYHA grade, n (%) | |||
Class I | 9 (36.0) | 8 (32.0) | 17 (34.0) |
Class II | 10 (40.0) | 14 (56.0) | 24 (48.0) |
Class III | 5 (20.0) | 2 (8.0) | 7 (14.0) |
Class IV | 1 (4.0) | 0 (0.0) | 1 (2.0) |
Missing | 0 (0.0) | 1 (4.0) | 1 (2.0) |
Myocardial infarction, n (%) | |||
Yes | 9 (36.0) | 14 (56.0) | 23 (46.0) |
No | 16 (64.0) | 11 (44.0) | 27 (54.0) |
Coronary artery disease severity, n (%) | |||
Single vessel disease | 1 (4.0) | 1 (4.0) | 2 (4.0) |
Double vessel disease | 7 (28.0) | 7 (28.0) | 14 (28.0) |
Triple vessel disease | 15 (60.0) | 15 (60.0) | 30 (60.0) |
None | 0 (0.0) | 1 (4.0) | 1 (2.0) |
Missing | 2 (8.0) | 1 (4.0) | 3 (6.0) |
Left ventricular ejection fraction, n (%) | |||
≥ 50% | 20 (80.0) | 21 (84.0) | 41 (82.0) |
30–49% | 5 (20.0) | 4 (16.0) | 9 (18.0) |
Co-morbidities, n (%) | |||
Hypertension | 15 (60.0) | 18 (72.0) | 33 (66.0) |
Diabetes mellitus | 4 (16.0) | 6 (24.0) | 10 (20.0) |
Peripheral vascular disease | 2 (8.0) | 2 (8.0) | 4 (8.0) |
Chronic obstructive pulmonary disease | 1 (4.0) | 3 (12.0) | 4 (8.0) |
Asthma | 1 (4.0) | 2 (8.0) | 3 (6.0) |
Smoking status, n (%) | |||
Never smoked | 8 (32.0) | 9 (36.0) | 17 (34.0) |
Ex-smoker | 16 (64.0) | 15 (60.0) | 31 (62.0) |
Current smoker | 1 (4.0) | 1 (4.0) | 2 (4.0) |