Risk estimates for asbestos exposure and lung cancer according to self-reports and DOM-JEM assessment, Greater Toronto Area, Ontario, 1997–2001
| Self-reports* | DOM-JEM | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Controls | OR† | 95% CI | Cases | Controls | OR† | 95% CI | |||
| Never | 390 | 846 | 1.0 | 329 | 812 | 1.0 | ||||
| Ever | 29 | 48 | 0.9‡ | 0.5 | 1.6 | 90 | 82 | 1.9 | 1.3 | 2.7 |
| Low§ | 80 | 75 | 1.9 | 1.2 | 2.6 | |||||
| High¶ | 10 | 7 | 2.3 | 0.8 | 6.5 | |||||
| Duration of exposure** | ||||||||||
| Never | 370 | 831 | 1.0 | 309 | 797 | 1.0 | ||||
| 1–10 years | 14 | 27 | 0.9 | 0.4 | 1.8 | 44 | 53 | 1.5 | 0.9 | 2.4 |
| >10 years | 15 | 21 | 0.9 | 0.4 | 2.0 | 46 | 29 | 2.6 | 1.5 | 4.5 |
*Analyses restricted to 1313 individuals with complete self-reports and DOM-JEM exposure assessments.
†Adjusted for age group, sex and smoking pack-years, and with a 10-year lag.
‡Discrepancy with OR reported in Brenner et al17 resulting from exclusion in this study of 20 cases and 38 controls because of missing work history information.
§Ever employed in a job classified as low, but never high, asbestos exposure according to DOM-JEM.
¶Ever employed in a job classified as high asbestos exposure according to DOM-JEM.
**Analyses restricted to 1278 individuals with complete self-reports and DOM-JEM exposure duration data.
DOM-JEM, general population job-exposure matrix.