Lung cancer incidence according to employment duration in selected departments and biological exposure categories
| Exposed | Not exposed | Duration of employment | p value* | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1–4 years | 5–14 years | 15+ years | ||||||||||||||
| Obs | SIR | 95% CI | Obs | SIR | 95% CI | Obs | SIR | 95% CI | Obs | SIR | 95% CI | Obs | SIR | 95% CI | ||
| *Test for trend over the not exposed and the three duration of employment categories. | ||||||||||||||||
| Department | ||||||||||||||||
| Slaughterboard | 13 | 1.87 | 1.05 to 3.10 | 13 | 1.56 | 0.88 to 2.60 | 2 | 1.05 | 0.21 to 3.36 | 5 | 1.71 | 0.65 to 3.75 | 6 | 2.80 | 1.17 to 5.78 | 0.21 |
| Processing | 5 | 2.91 | 1.10 to 6.37 | 21 | 1.55 | 0.99 to 2.32 | 2 | 3.85 | 0.77 to 12.33 | 2 | 3.63 | 0.73 to 11.66 | 1 | 1.53 | 0.14 to 7.17 | 0.64 |
| Plant services | 6 | 2.22 | 0.92 to 4.58 | 20 | 1.59 | 1.00 to 2.41 | 0 | 0.00 | 0.00 to 2.68 | 3 | 2.89 | 0.80 to 7.70 | 3 | 4.05 | 1.12 to 10.82 | 0.07 |
| Biological exposure | ||||||||||||||||
| Raw meat | 16 | 1.77 | 1.05 to 2.81 | 10 | 1.60 | 0.82 to 2.83 | 3 | 1.17 | 0.33 to 3.14 | 6 | 1.63 | 0.68 to 3.35 | 7 | 2.51 | 1.12 to 4.91 | 0.30 |
| Urine | 20 | 1.72 | 1.09 to 2.61 | 6 | 1.63 | 0.68 to 3.36 | 2 | 0.62 | 0.12 to 1.98 | 8 | 1.65 | 0.78 to 3.11 | 10 | 2.84 | 1.46 to 5.04 | 0.07 |
| Faeces | 21 | 1.97 | 1.26 to 2.95 | 5 | 1.08 | 0.41 to 2.37 | 3 | 0.98 | 0.27 to 2.62 | 8 | 1.88 | 0.89 to 3.55 | 10 | 2.97 | 1.52 to 5.26 | 0.02 |
| Blood | 20 | 1.91 | 1.21 to 2.90 | 6 | 1.24 | 0.52 to 2.56 | 3 | 0.95 | 0.26 to 2.53 | 7 | 1.73 | 0.77 to 3.40 | 10 | 3.07 | 1.58 to 5.46 | 0.03 |