Univariate correlates of change in CCQ score.
| Variable | Pearson correlation | p Value |
|---|---|---|
| ΔSGRQ Total | 0.48 | <0.001 |
| ΔSGRQ Symptoms | 0.14 | <0.001 |
| ΔSGRQ Activities | 0.38 | <0.001 |
| ΔSGRQ Impact | 0.45 | <0.001 |
| ΔCRQ Total | −0.56 | <0.001 |
| ΔCRQ Dyspnoea | −0.46 | <0.001 |
| ΔCRQ Fatigue | −0.37 | <0.001 |
| ΔCRQ Emotion | −0.44 | <0.001 |
| ΔCRQ Mastery | −0.46 | <0.001 |
| ΔCAT | 0.54 | <0.001 |
Δ, delta change; CAT, COPD Assessment Test; CRQ, Chronic Respiratory Questionnaire; SGRQ, St George's Respiratory Disease Questionnaire.