Ambient air particulate matter exposure and effects on lung function
| Daily mean PM2.5 concentration (10 µg/m3) | Daily mean PM10 concentration (10 µg/m3) | |||||
|---|---|---|---|---|---|---|
| Lung function outcome | B | 95% CI | p Value | B | 95% CI | p Value |
| FEV1 (mL) | −26 | (−43 to −9) | 0.01 | −14 | (−22 to −6) | 0.01 |
| FVC (mL) | −28 | (−49 to −8) | 0.007 | −16 | (−28 to −4) | 0.007 |
| FEV1%pred (%) | −0.96 | (−1.646 to −0.274) | 0.014 | −0.535 | (−0.952 to −0.118) | 0.014 |
| FVC%pred (%) | −0.852 | (−1.490 to −0.213) | 0.009 | −0.495 | (−0.866 to −0.124) | 0.009 |
| FEV1/FVC (%) | −0.09 | (−0.170 to −0.010) | 0.027 | −0.024 | (−0.092 to 0.040) | 0.489 |
B=regression coefficient of daily mean PM2.5/10concentration for lung function adjusted for sex, age, height, weight, smoking pack-years, education state, family history, biofuel (hours×year), occupational exposure, history of childhood pneumonia in the hospital, rural and urban distribution, clusters; PM2.5/10=particulate matter with a median aerodynamic diameter <2.5/10 µm. Data calculation was based on all 5993 participants in the seven clusters.