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Joint effect of exposure to asbestos and smoking on lung cancer risk*
| Exposure group | Smoking (n=189),OR (95% CI) | Non-smoking (n=57),OR (95% CI) |
| Low | 3.04 (0.36 to 25.71) | 1.00 |
| Medium | 4.34 (0.52 to 36.53) | – |
| High | 10.39 (1.34 to 82.45) | 5.23 (0.50 to 54.58) |
Analysis was carried out with conditional logistic regression in 41 lung cancer cases and 205 controls, adjusting for exposure duration. Low exposure/non-smoking subjects served as the reference group.
