Associations of lung function and ambient air pollution exposure#
| Subjects n | FEV1 (mL) β (95% CI) | FVC (mL) β (95% CI) | FEV1/FVC β (95% CI) | |
| PM2.5 per 5 μg·m−3 | 278 228 | −83.13 (−92.50– −73.75) | −62.62 (−73.91– −51.32) | −9.68 (−10.81– −8.56) |
| PM10 per 10 μg·m−3 | 278 228 | −94.41 (−104.59– −84.22) | −122.95 (−135.22– −110.68) | −0.34 (−1.56–0.89) |
| PMcoarse per 5 μg·m−3 | 278 228 | −68.61 (−79.37– −57.85) | −96.69 (−109.65– −83.73) | 1.34 (0.04–2.63) |
| NO2 per 10 μg·m−3 | 299 537 | −33.85 (−36.34– −31.36) | −33.47 (−36.47– −30.46) | −2.27 (−2.57– −1.96) |
Bold type represents statistical significance. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; PM2.5: fine particulate matter with a 50% cut-off aerodynamic diameter <2.5 μm; PM10: particulate matter with a 50% cut-off aerodynamic diameter <10 μm; PMcoarse: coarse particulate matter with diameter 2.5–10 μm; NO2: nitrogen dioxide. #: adjusted for age (continuous), age-squared, sex, height, body mass index (kg·m−2), household income (<GBP 31 000/≥GBP 31 000), education level (lower vocational or less/higher vocational or more), smoking status (never/former/current) and passive smoking exposure at home (none/any).