Multiple linear regression models for ΔFEV1 (predicted − observed) in 212 tunnel workers and 205 outdoor construction workers
| ΔFEV1 (l) in tunnel workers | ΔFEV1 (l) in construction workers | ||||||
|---|---|---|---|---|---|---|---|
| Covariables | Regression coefficient | SE | p value | Regression coefficient | SE | p value | |
| Years employed in the same job | –0.017 | 0.005 | 0.001 | –0.0005 | 0.005 | 0.9 | |
| Pack years in cigarette smokers | –0.009 | 0.003 | 0.005 | –0.007 | 0.004 | 0.08 | |
| Atopy | –0.167 | 0.123 | 0.173 | –0.048 | 0.122 | 0.7 | |
FEV1 = forced expiratory volume in one second.