He american cancer society estimates that smoking causes approximately of all lung cancer cases. the american cancer society estimates that smoking causes approximately of all lung cancer cases. 74% 87% 38% 53%

The American cancer society estimates that smoking causes approximately 87% of all lung cancer cases.  Smoking accounts for about 30% of all cancer deaths in the USA (like mouth, larynx, pharynx, oesophagus) including more than 80% of all lung cancer deaths. Lung cancer is one of the hardest cancers for treatment and the leading cause of cancer death in both male and female.