Smoking Prevention and Cessation

The most important etiological factor in the development of lung cancer is smoking, which accounts for approximately 80 to 85% of all lung cancer cases. Tobacco use is also a major contributor to the incidence of chronic respiratory disease (80 to 90%) and myocardial infarction (23 to 40%) [1] and has been strongly correlated with other cancers (e.g. oral, laryngeal and bladder cancers). Approximately one-third of all cancer deaths is attributed to tobacco [2].