Environmental risk factors for lung cancer in Iran: a case–control study

摘要

Background Lung cancer remains the leading cause of cancer death in the world. In Iran, lung cancer is one of the five leading tumours and its incidence has been increasing steadily in both men and women. There is a paucity of data from Iran on risk factors for lung cancer. We evaluated environmental risk factors for lung cancer in a case–control study in five hospitals of Tehran.