Table 8 Univariate associations between serum biomarkers and neutrophil total counts and % in blood and sputum.
From: Sputum neutrophils as a biomarker in COPD: findings from the ECLIPSE study
| Â | No of subjects | Median (IQR) | Blood neutrophils | Sputum neutrophils | ||
|---|---|---|---|---|---|---|
| Â | Â | Â | Total Count | % | Total count/ml | % |
C-RP mg/L | 134 | 6.3 (11.0) | r2 = 0.05 ; p = 0.011 | NS | NS | r2 = 0.02; p = 0.070 |
IL-6 pg/ml | 331 | 1.9 (4.3) | r2 = 0.03; p = 0.001 | r2 = 0.03; p = 0.001 | NS | NS |
IL-8 pg/ml | 332 | 7.7 (7.6) | NS | NS | NS | r2 = 0.02; p = 0.019 |
SP-D ng/ml | 279 | 126.7 (90.6) | NS | NS | r2 = 0.02; p = 0.016 | NS |