lung cancer smokers non-smokers
how likely are you to get lung cancer compared to a non smoker?
if you smoke a pack a day, how much more likely are you o develope cancer then a non smoker?
Lets put it this way, 99% of people with small cell carcinoma of the lung (a type of lung cancer) are smokers.
Less than 1% are non-smokers.
Other forms of lung cancer have simillar statistics.
Heather Crowe: Secondhand Smoke
