Table 2.
RR of lung cancer mortality 1959–1996 and diesel fraction weighted cumulative years of work in an engineer or conductor job group (years of diesel exposure) compared to unexposed workers adjusting for age, work in any shop category, years of employment and time since last worked as time dependent covariates.
| Years of Work as Engineer or Conductor
|
|||||||
|---|---|---|---|---|---|---|---|
| Lag Model | Not Exposed | 0-<10 | 10-<15 | 15-<20 | 20-<25 | ≥25 | |
| None | Cases | 916 | 156 | 346 | 582 | 728 | 559 |
| Person years | 332,660 | 72,480 | 165,639 | 166,208 | 161,152 | 121,594 | |
| RR | ref | 1.23 | 1.36 | 1.52 | 1.41 | 1.27 | |
| 95% CI | 1.03–1.47 | 1.20–1.55 | 1.36–1.69 | 1.27–1.56 | 1.13–1.43 | ||
| 5 years | Cases | 916 | 243 | 396 | 557 | 696 | 479 |
| Person years | 334,615 | 192,733 | 146,830 | 136,493 | 122,969 | 86,094 | |
| RR | ref | 1.22 | 1.34 | 1.48 | 1.47 | 1.29 | |
| 95% CI | 1.05–1.43 | 1.18–1.52 | 1.33–1.65 | 1.32–1.63 | 1.14–1.47 | ||