The lungs are a major component of the human respiratory system and the body cannot exhale without them. Most lung cancer patients are already at an advanced stage when diagnosed. The following lung cancer risk assessment chart can tell you your risk factor for developing lung cancer. Please check the questions that match your situation and add up the scores to get a total score. Then, use the result interpretation table to find out whether your risk of developing lung cancer is high or low, and try to avoid these risk factors. 1. Did any of the immediate family members get lung cancer? Yes 1 point; No 0 points 2. Current age? 1 point for 20-19 years; 2 points for 40-49 years; 3 points for past 50 years 3. Have you smoked in the past? Yes 4 points; No 0 points 4.Do you smoke now? 4 points for smoking; 0 points for non-smoking 5. If you smoke now, how much do you smoke per day? Less than one pack per day-1 point; one pack per day-2 points; one pack to one and a half packs per day-3 points; at least two packs per day-4 points 6. If you have quit smoking, how long have you quit? Less than 5 years – 1 point; 6-10 years – 2 points; 11-20 years – 3 points; more than 20 years – 4 points 7. Have you lived with someone who smokes? Yes 3 points; No 0 points 8.Do you work in a place where many people smoke (bars and nightclubs)? Yes 3 points; No 0 points 9.Have you ever been diagnosed with chronic bronchitis or emphysema? 2 points; no 0 points 10, answer “yes” to the 4th question plus 5 points Result explanation: less than 7 points very low risk; 7-12 points low to moderate risk; 13-18 points moderate to high risk; above 18 points very high risk