Who is at risk for Lung Cancer? ?
Risk factors that increase your chance of getting lung cancer include - cigarette, cigar, and pipe smoking, which account for well over half of all cases of lung cancer  - secondhand smoke  - family history  - HIV infection  - environmental risk factors  - beta carotene supplements in heavy smokers. cigarette, cigar, and pipe smoking, which account for well over half of all cases of lung cancer secondhand smoke family history HIV infection environmental risk factors beta carotene supplements in heavy smokers.