Relationship between change in CAT and change in CRQ with PR for non-COPD and COPD patients
| Non-COPD | r | p-value |
| Δ CRQ Dyspnoea | –0.29 | 0.003 |
| Δ CRQ Fatigue | –0.33 | 0.004 |
| Δ CRQ Emotion | –0.38 | <0.001 |
| Δ CRQ Mastery | –0.25 | 0.009 |
| COPD | r | p-value |
| Δ CRQ Dyspnoea | –0.32 | <0.001 |
| Δ CRQ Fatigue | –0.38 | <0.001 |
| Δ CRQ Emotion | –0.43 | <0.001 |
| Δ CRQ Mastery | –0.39 | <0.001 |
Δ = Change with PR; CRQ = self-report Chronic Respiratory Questionnaire; r=Pearson Correlation Coefficient.