Results—While we observed an increased risk of lung cancer associated with working in a
sawmill (OR=1.5; 95% CI: 1.1, 2.1), we found no evidence of increased risks with other
occupations, working with wood as a hobby or with estimated cumulative exposure to wood dust
(OR = 0.9; 95% CI: 0.6, 1.3, for highest compared to lowest quartile of exposure). Contrary to our
hypothesis, we observed modest non-significant decreased risks with exposure to wood dust,
although no dose-response relationship was apparent.