Table 2.
Correlations between the serum levels of IL-17, IL-18, and TNF-α in all examined patients with COPD, asthma-COPD overlap, and bronchial asthma.
| COPD | ACO | BA | All examined patients | |||||
|---|---|---|---|---|---|---|---|---|
| IL-18 | TNF-α | IL-18 | TNF-α | IL-18 | TNF-α | IL-18 | TNF-α | |
| IL-17 |
r = 0.49 p ≤ 0.001 |
r = 0.6 p ≤ 0.001 |
r = 0.67 p ≤ 0.001 |
r = 0.61 p ≤ 0.001 |
r = 0.3 p = 0.24 |
r = ‐0.23 p = 0.6 |
r = 0.54 p ≤ 0.001 |
r = 0.56 p ≤ 0.001 |
| IL-18 |
r = 0.39 p = 0.01 |
r = 0.65 p ≤ 0.001 |
r = 0.1 p = 0.8 |
r = 0.45 p ≤ 0.001 |
||||
r: correlation coefficient; COPD: chronic obstructive pulmonary disease; ACO: asthma-COPD overlap; BA: bronchial asthma.