Women have a better chance of surviving lung cancer than men even when the cancer is untreated, a new research has found. The study was presented Tuesday at the annual meeting of the American College of Chest Physicians in Montreal, Canada.
Investigators1 reviewed 18,967 cases of non-small-cell lung cancer and found that 54 percent of women survived five years after diagnosis2, compared with 40 percent of men, according to the study.
Even among untreated patients, women were 25 percent less likely to die of the disease than men. And women who were treated for the lung cancer with surgery and or chemotherapy were 30 percent less likely to die of the disease than men, the study showed.
The result probably means biological differences play a role in the disease and may affect clinical trial design and point to potential targets for new medicines, said lead researcher Juan P. Wisnivesky.
Many factors may play a role in this gender3 difference, Dr. Wisnivesky said, including smoking patterns , the body's metabolism5 of carcinogens and the effects of female hormones6 like estrogen.
重点记忆词语
Montreal n. （加拿大城市）蒙特利尔 gender n. 性别
chemotherapy n. 化学疗法 surgery n. 外科手术
inhale v. 吸入 metabolism n. 新陈代谢
estrogen n. 雌激素 hormone n. 荷尔蒙, 激素
carcinogen n. 致癌物质
