Table 2 Score distribution of the Total score of the SGRQ and CAT scores
From: COPD and disease-specific health status in a working population
SGRQ Total (0–100) | CAT (0–40) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Mean | Median | SD | Max | Floor effect | Mean | Median | SD | Max | Floor effect | |
All subjects | 6.4 | 5.3 | 5.7 | 51.5 | 8.9% | 6.4 | 6.0 | 4.6 | 26.0 | 7.4% |
Non-COPD defined by fixed ratio | 6.31) | 5.3 | 5.4 | 43.2 | 9.1% | 6.3 | 6.0 | 4.5 | 24.0 | 7.3% |
COPD defined by fixed ratio | 7.9 | 6.4 | 7.6 | 51.5 | 6.9% | 7.3 | 6.0 | 5.2 | 26.0 | 7.6% |
Non-COPD defined by LLN | 6.3 | 5.3 | 5.6 | 51.5 | 8.6% | 6.4 | 6.0 | 4.5 | 24.0 | 7.0% |
COPD defined by LLN | 8.4 | 6.7 | 7.5 | 34.0 | 13.4% | 7.4 | 6.0 | 5.9 | 26.0 | 13.4% |
Healthy non-smoking subjects¶# | 5.72)3)4)5) | 4.9 | 4.9 | 43.2 | 10.5% | 5.82)3)4) | 5.0 | 4.4 | 23.0 | 9.4% |
Healthy smoking subjects¶* | 6.8 | 5.8 | 5.5 | 37.1 | 7.5% | 6.8 | 6.0 | 4.4 | 24.0 | 5.3% |
COPD/GOLD stageI | 8.1 | 5.7 | 9.2 | 51.5 | 5.0% | 7.2 | 6.0 | 5.1 | 21.0 | 6.7% |
COPD/GOLD stageII | 7.5 | 6.4 | 6.1 | 26.8 | 8.9% | 7.2 | 6.0 | 5.3 | 26.0 | 8.9% |