Mean of outcomes at baseline and 6 months and differences between intervention and control groups at 6 months (available case analysis)
| Control, n = 30 | Intervention, n = 61 | |||||
|---|---|---|---|---|---|---|
| Baseline | 6 months | Baseline | 6 months | Estimated differencea (95% CI) | Direction of effect favours | |
| SGRQ, mean ± SE | ||||||
| Symptoms | 58.0 ± 4.85 | 50.4 ± 4.70 | 54.9 ± 3.62 | 52.5 ± 3.27 | 4.7 (–3.0 to 12.4) | Control |
| Activities | 57.3 ± 3.98 | 58.7 ± 2.98 | 55.5 ± 2.74 | 53.0 ± 2.55 | –4.8 (–11.3 to 1.8) | Intervention |
| Impacts | 34.4 ± 3.66 | 31.8 ± 3.26 | 36.6 ± 2.45 | 33.9 ± 2.62 | 0.3 (–5.1 to 5.7) | Control |
| Total score | 45.3 ± 3.49 | 43.1 ± 3.18 | 45.4 ± 2.34 | 42.8 ± 2.47 | –0.4 (–5.1 to 4.4) | Intervention |
| Exercise, minutes/week | ||||||
| Strengthening | 22.0 ± 9.7 | 9.0 ± 4.4 | 22.6 ± 6.1 | 21.6 ± 5.8 | 12.4 (–3.8 to 28.6) | Intervention |
| Aerobic | 56.0 ± 12.3 | 43.5 ± 10.9 | 65.7 ± 10.5 | 59.1 ± 10.4 | 10.1 (–16.3 to 35.5) | Intervention |
| Self-efficacy to: | ||||||
| Communicate with doctors | 8.0 ± 0.5 | 7.7 ± 0.5 | 8.5 ± 0.3 | 8.2 ± 0.3 | 0.2 (–0.6 to 1.1) | Intervention |
| Manage disease | 7.4 ± 0.3 | 7.8 ± 0.2 | 7.7 ± 0.2 | 7.4 ± 0.2 | –0.5 (–1.0 to 0.1) | Control |
| HADS scores | ||||||
| Anxiety | 6.7 ± 0.8 | 6.7 ± 0.8 | 6.1 ± 0.5 | 5.7 ± 0.6 | –0.5 (–1.8 to 0.9) | Intervention |
| Depression | 4.8 ± 0.5 | 5.1 ± 0.4 | 5.4 ± 0.4 | 5.7 ± 0.4 | 0.2 (–0.8 to 1.3) | Control |
| EQ-5D | ||||||
| EQ-5D index scores | 0.76 ± 0.04 | 0.57 ± 0.07 | 0.73 ± 0.04 | 0.68 ± 0.04 | 0.12 (–0.02 to 0.26) | Intervention |
| Current health, n | ||||||
| Very good | 0 | 2 | 2 | 4 | ||
| Good | 7 | 4 | 13 | 12 | ||
| Fair | 17 | 15 | 26 | 31 | ||
| Poor | 5 | 9 | 17 | 13 | ||
| Very poor | 1 | 0 | 3 | 1 | ||
HADS = Hospital Anxiety and Depression Scale. SE = standard error. SGRQ = St George’s Respiratory Questionnaire.
↵a From the ANCOVA, regression coefficient for the intervention versus the control groups.