What Are The Risk Factors For Lung Cancer Among Those Who Never Smoked?
It doesn't appear to be second hand smoke; at least not from a brand new study of lung cancer cases in Toronto. On the other hand, having a family member diagnosed with lung cancer before age 50 significantly increased risk. So did a prior history of chronic lung disease. Similarly, occupational exposure to solvents, paints, thinners, soot, wood dust, grain dust and welding more than doubled the risk of lung cancer among non-smokers. Read all about it (for free) in "Lung Cancer Risk in Never-Smokers: A Population-Based Case-Control Study of Epidemiologic Risk Factors".