Differential cell counts in the bronchial wash(BW) and bronchoalveolar lavage (BAL) following a 2-h exposure to air and diesel exhaust (DE)
| Cell type cells×104·mL−1 | Air | DE | p-value |
| BW neutrophils | 0.85 (0.51–1.68) | 1.41 (1.05–2.24) | 0.02 |
| BAL neutrophils | 0.09 (0.07–0.23) | 0.10 (0.07–0.11) | 0.50 |
| BW macrophages | 7.7 (4.9–8.6) | 7.4 (5.2–8.3) | 0.80 |
| BAL macrophages | 9.2 (8.0–10.2) | 9.4 (5.9–11.4) | 0.72 |
| BW lymphocytes | 0.28 (0.17–0.36) | 0.31 (0.09–0.49) | 0.93 |
| BAL lymphocytes | 1.05 (0.82–1.83) | 1.18 (0.83–1.98) | 0.76 |
| BW eosinophils | 0.0 (0.0–0.04) | 0.02 (0.0–0.03) | 0.68 |
| BAL eosinophils | 0.02 (0.0–0.05) | 0.02 (0.0–0.04) | 0.84 |
| BW mast cells | 0.0 (0.0–0.002) | 0.0 (0.0–0.002) | 0.74 |
| BAL mast cells | 0.0 (0.0–0.003) | 0.0 (0.0–0.00) | 0.31 |
Data are presented as median (interquartile range). n = 15.