Changes in health-related quality of life, dyspnoea, depression, anxiety and self-efficacy according to intervention group
| Outcome | Mean (SE) change from baseline | Mean (95% CI) difference in change from baseline | Mean (95% CI) adjusted difference in change from baseline* | p Value | |
| Action plan group (n=86) | Control group (n=97) | ||||
| SGRQ Total | −0.4 (1.1) | 1.2 (1.3) | −0.8 (−4.1 to 2.4) | −1.3 (−4.4 to 1.9) | 0.42 |
| SGRQ Activity | 2.6 (1.8) | 2.8 (1.7) | −0.2 (−5.1 to 4.8) | −0.4 (−5.1 to 4.2) | 0.85 |
| SGRQ Symptom | −3.6 (2.3) | −0.6 (2.1) | −3.1 (−9.1 to 3.0) | −3.4 (−9.0 to 2.2) | 0.23 |
| SGRQ Impact | −0.1 (1.4) | 0.8 (1.0) | −0.8 (−4.1 to 2.4) | −1.3 (−4.4 to 1.9) | 0.42 |
| HADS depression | −0.2 (0.3) | −0.3 (0.3) | 0.1 (−0.7 to 1.0) | 0.0 (−0.8 to 0.8) | 0.95 |
| HADS anxiety | −0.4 (0.3) | −0.4 (0.3) | 0.0 (−0.9 to 0.9) | 0.0 (−0.9 to 0.8) | 0.97 |
| Self-efficacy recognition | −0.4 (0.1) | 0.3 (0.1) | −0.8 (−1.1 to −0.4) | −0.7 (−0.9 to −0.5) | <0.001 |
| Self-efficacy prevention / action | −0.7 (0.1) | 0.2 (0.1) | −1.0 (−1.3 to −0.7) | −0.7 (−1.0 to −0.5) | <0.001 |
↵* Difference in change from baseline adjusted for the baseline value of the parameter and centre; corresponding 95% CIs and p values are calculated using ANCOVA.
HADS, Hospital Anxiety and Depression Scale; SGRQ, St George's Respiratory Questionnaire.