Lung function tests (mean (range, SD))
| Variable | Control group | Exposed group | |||||
|---|---|---|---|---|---|---|---|
| Non-smokers (n=26) | Smokers (n=53) | Total (n=79) | Non-smokers (n=24) | Smokers (n=51) | Total (n=75) | ||
| FVC (l) | 5.0 (3.5–0.4, 0.8) | 4.9 (3.1–6.2, 0.7) | 4.9 (3.1–6.4, 0.7) | 5.0 (3.1–6.7, 0.9) | 5.0 (3.2–6.5, 0.8) | 5.0 (3.1–6.7, 0.8) | |
| RV (l) | 1.7 (0.7–2.5, 0.4) | 1.9 (0.5–3.7, 0.6) | 1.9 (0.5–3.7, 0.6) | 1.7 (0.6–2.9, 0.5) | 1.9 (1.0–3.4, 0.5) | 1.8 (0.6–3.4, 0.5) | |
| TLC (l) | 6.8 (5.1–8.6, 1.0) | 7.0 (5.0–8.9, 0.9) | 6.9 (5.0–8.9, 0.9) | 6.8 (5.1–9.5, 1.2) | 7.0 (4.9–9.7, 1.0) | 6.9 (4.9–9.7, 1.1) | |
| RV/TLC (%) | 25.3 (14.0–36.0, 4.7) | 28.1 (7.8–42.3, 6.5) | 27.2 (7.8–42.3, 6.1) | 24.9 (10.5–35.3, 5.4) | 26.8 (15.3–39.8, 5.4) | 26.2 (10.5–39.8, 5.4) | |
| FEV1 (l) | 4.1 (2.3–5.5, 0.7) | 4.0 (2.1–4.8, 0.5) | 4.0 (2.1–5.5, 0.6) | 4.1 (2.3–5.5, 0.7) | 4.0 (2.8–5.2, 0.7) | 4.0 (2.3–5.5, 0.7) | |
| FEV1/VC (%) | 82.0 (64.3–92.6, 6.2) | 80.8 (68.4–90.3, 5.5) | 81.2 (64.3–92.6, 5.7) | 82.4 (70.1–88.2, 5.2) | 80.7 (59.3–92.9, 6.6) | 81.2 (59.3–92.9, 6.2) | |
| PEF (l/s) | 9.8 (5.3–12.7, 1.7) | 9.3 (4.8–12.7, 1.6) | 9.5 (4.8–12.7, 1.7) | 10.2 (5.9–14.0, 2.0) | 9.6 (4.3–12.7, 1.7) | 9.8 (4.3–14.0, 1.9) | |
| MEF75 (l/s) | 2.2 (0.5–4.6, 1.0) | 1.8 (0.7–3.0, 0.5) | 1.9 (0.5–4.6, 0.7) | 2.1 (0.5–3.3, 0.7) | 2.0 (0.7–4.1, 0.7) | 1.9 (0.5–4.1, 0.7) | |
| MEF50 (l/s) | 5.3 (1.7–9.0, 1.7) | 5.0 (1.7–8.7, 1.4) | 5.1 (1.7–9.0, 1.5) | 5.3 (2.0–7.6, 1.3) | 5.0 (1.8–10.0, 1.6) | 5.1 (1.8–10.0, 1.5) | |
| TLco
(ml/min/mm Hg) | 33.0 (22.5–40.7, 4.0) | 31.5 (19.4–54.0, 5.8) | 32.0 (19.4–54.0, 5.3) | 34.0 (23.4–50.6, 6.8) | 31.4 (19.1–43.1, 5.3) | 32.2 (19.1–50.6, 5.9) | |
| TLco/VA (ml/min/mm Hg/l) | 5.0 (4.2–6.3, 0.6) | 4.7 (3.2–6.2, 0.7) | 4.8 (3.2–6.3, 0.7) | 5.2 (4.0–6.5, 0.7) | 4.7 (3.0–5.9, 0.7) | 4.8 (3.0–6.5, 0.7) | |