Miners I | Miners II | p-value | |
Subjects n | 22 | 21 | |
Total cells ×106·mL−1 | 4.4 (3.1–6.5) | 3.0 (2.0–4.4) | ns |
Macrophages ×106·mL−1 | 2.3 (0.9–3.7) | 1.4 (0.8–2.5) | ns |
Neutrophils ×106·mL−1 | 1.5 (0.6–3.6) | 1.1 (0.4–2.0) | ns |
Lymphocytes ×106·mL−1 | 0.1 (0.05–0.4) | 0.07 (0.02–0.15) | ns |
Eosinophils ×106·mL−1 | 0.01 (0.00–0.02) | 0.01 (0.00–0.03) | ns |
Data are presented as median (interquartile range), unless otherwise stated. ns: nonsignificant. #: miners at the end of the holiday; ¶: miners after ≥3 months' work period.