Carzy said:
I coulda sworn there's no proven link between passive smoking and cancer. Definitely remember reading an editorial in the Independent where the guy talked about the largest study ever conducted into passive smoking - and it couldn't find any link...
[quote="Lung Cancer" 45 Suppl. 2 (2004) S3–S9]Secondhand tobacco smoke has several deleterious effects on people who inhale it. The evaluation of its carcinogenicity was based on more than 50 studies of lung cancer in never-smokers, conducted in many countries. Lifelong non-smoking spouses of smokers who smoke at home had a significant and consistent 20–30% increase in lung cancer risk. Similarly, never-smokers exposed to secondhand tobacco smoke at the workplace have a 16–19% increase in risk to develop lung cancer. In accordance with the observations made with active smoking, risk increased with increasing exposure. The increased risk of never-smokers exposed to secondhand tobacco smoke cannot be ascribed to bias, confounding or other inadequacies in the research and are compatible with extrapolation of risk from active smokers in terms of intensity and duration of exposure.
In addition, never-smokers exposed to secondhand smoke suffer from several other smokingrelated diseases observed among smokers: in adults, increased morbidity and mortality linked to acute and chronic coronary heart diseases, and eye and nose irritation; in children, acute lower respiratory tract infections, chronic respiratory symptoms such as exacerbation of asthma, and middle ear infections. Exposure in utero and possibly secondhand smoke can affect fetuses of smoking or smoke-exposed mothers, and is responsible for low birth weight and a higher frequency of Sudden Infant Death Syndrome.[/quote]