Spearman’s correlation for sputum colour at all exacerbations
| Sputum Colour | ||
|---|---|---|
| rho | p value | |
| FEV1% | 0.26 | <0.01 |
| Sputum | ||
| Neutrophils (count) | 0.66 | <0.01 |
| Neutrophils (%) | 0.62 | <0.01 |
| Macrophages (count) | -0.38 | <0.01 |
| Macrophages (%) | -0.48 | <0.01 |
| Lymphocytes (count) | -0.22 | <0.05 |
| Lymphocytes (%) | -0.23 | <0.05 |
| Blood | ||
| Neutrophils (10*9/L) | 0.20 | <0.05 |
| CRP (mg/L) | 0.47 | <0.01 |
| Fibrinogen (g/L) | 0.32 | <0.01 |
| Procalcitonin (ng/ml) | NS | NS |
| EXACT-PRO | NS | NS |
| CAT | NS | NS |
FEV1: Forced Expiratory Volume in 1 second; CRP: C Reactive Protein; EXACT-PRO: The Exacerbations of Chronic Pulmonary Disease Tool Patient Reported Outcome; CAT: The COPD Assessment Tool; NS: No significance