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Floating trends in the odds of lung cancer on a logarithmic scale according to pack-years of cigarette smoking, adjusted for residence area, age, and years since quitting smoking, in females (○) and males (•), the EAGLE Study, Lombardy, Italy, 2002–2005. Estimates shown are for never smokers (0 pack-years) and current smokers aged 65–69 years residing in area 1 (Milan). Dashed lines, 95% confidence interval. EAGLE, Environment and Genetics in Lung Cancer Etiology.
