Induced sputum cell counts and fluid phase marker levels at Visit 2
| Chlamydia pneumoniae antibody titre | p-value | ||
| Raised | Not raised | ||
| Total cell count 106 cells·mL−1 | 4.2 (2.3–7.4) | 3.2 (2.0–4.6) | 0.3 |
| Eosinophils 106 cells·mL−1 | 0.12 (0.03–0.56) | 0.06 (0.03–0.14) | 0.4 |
| Neutrophils 106 cells·mL−1 | 1.8 (0.8–3.9)*,# | 1.1 (0.6–1.9) | 0.3 |
| Macrophages/monocytes 106 cells·mL−1 | 1.8 (0.9–3.6) | 1.1 (0.6–1.9) | 0.3 |
| Lymphocytes 106 cells·mL−1 | 0.04 (0.01–0.12) | 0.03 (0.01–0.08) | 0.7 |
| Epithelial cells 106 cells·mL−1 | 0.06 (0.02–0.20) | 0.05 (0.03–0.08) | 0.5 |
| Squamous cells 106 cells·mL−1 | 0.4 (0.1–0.9) | 0.30 (0.10–0.67) | 0.8 |
| ECP ng·mL−1 | 977.2 (363.0–1698.0)*,# | 812.8 (389.0–2630.3) | 0.8 |
| IL-8 ng·mL−1 | 20.9 (9.3–31.6) | 16.2 (9.3–28.2) | 0.6 |
Data are presented as mean (95% confidence interval)
ECP: eosinophil cationic protein
IL: interleukin
*: p<0.05 for C. pneumoniae immunoglobulin A responders versus non responders
#: p<0.05 versus visit 1 results