Effect (β) of occupational exposure on lung function
| Parameters | β value (95% CI) | |
|---|---|---|
| All subjects (n=187) | Exposed workers only (n=133) | |
| FVC (l) | −0.034 (−0.044 to −0.023) | −0.04 (−0.07 to −0.009) |
| FVC % predicted | −0.84 (−1.08 to −0.60) | −1.53 (−2.31 to −0.76) |
| FEV1 (l) | −0.039 (−0.033 to −0.044) | −0.065 (−0.08 to −0.05) |
| FEV1% predicted | −1.00 (−1.21 to −0.79) | −1.99 (−2.69 to −1.28) |
| FEV1/FVC | −0.003 (−0.006 to −0.001) | −0.011 (−0.02 to −0.003) |
All models included area-level TAO, parental atopy or asthma, smoking and exposure to second-hand smoke at work and/or at home. Models for FVC, FEV1 and FEV1/FVC also include height and age. All β values are statistically significant (p<0.01).
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; TAO, total airborne oxidants.