Questionnaire scores related to MRC breathlessness score (n = 100)
| Variable | MRC grade 3 (n = 32) | MRC grade 4 (n = 34) | MRC grade 5 (n = 34) | ANOVA (F) | p value |
|---|---|---|---|---|---|
| SGRQ (Activity) | 60.5 (17.9) | 77.6 (15.9) | 78.8 (16.0) | 12.3 | <0.0001 |
| SGRQ (Impacts) | 31.3 (13.7) | 47.7 (15.0) | 54.6 (15.6) | 21.3 | <0.0001 |
| SGRQ (Symptoms) | 61.6 (16.9) | 72.4 (15.4) | 72.1 (14.5) | 5.0 | <0.009 |
| CRQ (Dyspnoea) | 15.8 (5.9) | 13.1 (3.5) | 14.7 (4.8) | 2.8 | 0.07 |
| CRQ (Fatigue) | 17.5 (5.1) | 13.3 (4.6) | 12.4 (4.7) | 10.6 | <0.0001 |
| CRQ (Emotional function) | 34.8 (9.6) | 29.6 (9.1) | 27.8 (9.5) | 4.8 | <0.01 |
| CRQ (Mastery) | 21.3 (4.8) | 14.7 (5.1) | 14.6 (5.7) | 17.8 | <0.0001 |
| CRQ (Total)1-150 | 89.4 (17.9) | 70.7 (15.6) | 70.0 (20.5) | 12.4 | <0.0001 |
| HAD (Anxiety) | 4.7 (3.6) | 7.7 (4.3) | 7.7 (4.9) | 5.1 | <0.008 |
| HAD (Depression) | 3.5 (1.9) | 6.2 (3.0) | 7.1 (3.2) | 15.4 | <0.0001 |
| Kruskal-Wallis (H) | |||||
| Borg (before exercise) | 0.5 (0–2) | 1.0 (0–4) | 1.0 (0–5) | 10.5 | <0.005 |
| Borg (after exercise) | 3 (1–6) | 4 (1–7) | 4 (2–10) | 7.1 | <0.03 |
SGRQ = St George’s Respiratory Questionnaire; CRQ = Chronic Respiratory Questionnaire; HAD = Hospital Anxiety and Depression score; EADL = Extended Activities of Daily Living score.
↵1-150 CRQ total is a sum of component scores.