Table 1 Baseline characteristics for randomised pilot study
|  | All Participants (n = 27) | Control group (n = 14) | Intervention group (n = 13) |
|---|---|---|---|
Male, n (%) | 12 (44.4) | 6 (42.9) | 6 (46.2) |
Age: mean (SD) | 82.04 (4.8) | 81.21 (3.6) | 82.92 (6.0) |
BMI: mean (SD) | 27.70 (4.2) | 28.13 (4.9) | 27.24 (3.6) |
Diabetes, n (%) | 4 (14.8) | 3 (21.4) | 1 (7.7) |
Smoking: never n (%) | 13 (48.1) | 7 (50.0) | 6 (46.2) |
 Ex, n (%) | 14 (51.9) | 7 (50.0) | 7 (53.8) |
Creatinine: mean (SD) | 95.3 (28.1) | 90.0 (23.9) | 101.0 (32.0) |
Previous MI, n (%) | 5 (18.5) | 2 (14.3) | 3 (23.1) |
History of pulmonary disease, n (%) | 7 (25.9) | 4 (28.6) | 3 (23.1) |
Pre-operative arrhythmia, n (%) | 15 (55.6) | 7 (50.0) | 8 (61.5) |
Previous cardiac surgery, n (%) | 7 (25.9) | 3 (21.4) | 4 (30.8) |
Previous PCI, n (%) | 11 (40.7) | 5 (35.7) | 6 (46.2) |
Left ventricular ejection fraction, n (%) | |||
 ≥ 50% | 21 (77.8) | 12 (85.7) | 9 (69.2) |
 30–49% | 5 (18.5) | 2 (14.3) | 3 (23.1) |
 < 30% | 1 (3.7) | 0 | 1 (7.7) |
6-min walk (metres)* | 346.9(44.7) | 401.0(41) | 325.2(22.8) |
FRIED scale 0 n (%) | 3/25 (12.0) | 2/12 (16.7) | 1 (7.7) |
 1, n (%) | 9/25 (36.0) | 3/12 (25.0) | 6 (46.2) |
 2, n (%) | 8/25 (32.0) | 5/12 (41.7) | 3 (23.1) |
 3, n (%) | 5/25 (20.0) | 2/12 (16.7) | 3 (23.1) |
Nottingham EADL (0–22) * | 15.7 (3.9) | 14.8 (4.7) | 16.5 (3.0) |
Edmonton Frail Scale (0–17) * | 5.17 (1.9) | 5.25 (1.8) | 5.08 (2.2) |
HADS Anxiety (0–21) ** | 3.0 (2, 4) | 3.0 (2, 5) | 3.0 (2, 4) |
HADS Depression (0–21) ** | 2.0 (1, 5) | 2.0 (1, 4) | 2.0 (2, 5) |