Exposure to TDI or MDI and cancer incidence in polyurethane foam industry workers with stable exposure classification over their employment period
| Tumour | None or constantly low exposure (n = 1394)* | Constantly apparent exposure (n = 1679)† | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| >5 years employment | All employment periods | |||||||||||
| O | E | SIR | 95% CI | O | E | SIR | 95% CI | O | E | SIR | 95% CI | |
| *582 women. | ||||||||||||
| †566 women. | ||||||||||||
| Lung cancer (women) | 6 | 1.50 | 4.00 | 1.47 to 8.71 | 3 | 0.63 | 4.76 | 0.98 to 13.9 | 5 | 1.53 | 3.27 | 1.06 to 7.64 |
| Brain cancer (men and women) | 6 | 3.68 | 1.63 | 0.60 to 3.55 | 1 | 1.32 | 0.76 | 0.02 to 4.22 | 5 | 3.90 | 1.28 | 0.42 to 3.00 |
| All (men and women) | 80 | 92.2 | 0.87 | 0.69 to 1.08 | 27 | 36.9 | 0.73 | 0.48 to 1.06 | 82 | 93.4 | 0.88 | 0.70 to 1.09 |