You are at risk of developing lung cancer if, you are:
A smoker: Smoking is the main cause of lung cancer. Smokers are at 15-20 times greater risk of developing lung cancer than non-smokers. The risk increases with the number of cigarettes smoked each day and the number of years you have smoked. Doctors calculate risk in pack years (number of packs of cigarettes smoked per day multiplied by number of years smoked). Risk increases with even 10 pack years of smoking history. Even if…
