Occupational exposure to asbestos and lung cancer in men: evidence from a population-based case-control study in eight Canadian provinces

Table 3 **Adjusted odds ratios* and 95% C.I. according highest occupational exposure to asbestos across cigarette pack-year smoking categories**

	Cigarette smoking (pack-years)
Highest occupational exposure to asbestos	< 10			10 - <40			≥ 40
	N	OR*	95% C.I.	N	OR*	95% C.I.	N	OR*	95% C.I.
None	84	1.0	-	630	1.0	-	678	1.0	-
Low	13	1.54	0.79 – 3.00	90	1.28	0.91 – 1.80	85	0.88	0.58 – 1.35
Medium or high	2	2.01	0.39 – 10.43	20	2.30	1.09 – 4.84	16	2.50	0.73 – 9.28

N = number of lung cancer cases.
* adjusted for age, province, occupational exposure to diesel and silica, and second hand cigarette smoke.

ISSN: 1471-2407