True or false: Of the 170,000 new cases of lung cancer diagnosed in the United States each year, greater than 90% of these patients are current smokers or former smokers.

Question

Quizplus · Accepted Answer

This statement is true. According to the American Cancer Society, "About 90% of lung cancer cases in the United States are caused by smoking." Additionally, the same source reports that "The risk of lung cancer is about 23 times higher in male smokers and 13 times higher in female smokers compared to lifelong never-smokers."

True or False: of the 170,000 New Cases of Lung