Ranney said the results are similar to those from American and worldwide surveys. "Adult leaders need to listen to this and adopt policies to protect youth from secondhand smoke," she said.
Danny McGoldrick, vice president of research at the Campaign for Tobacco-Free Kids, said smoking rates among teens have fallen by half since the 1990s, when they were skyrocketing.
According to federal figures, the percentage of high school students who said they smoked cigarettes within the last 30 days fell from 36 percent in 1997 to 20 percent in 2009.
Why? "We know increasing taxes reduces smoking, and we know that passing smoke-free laws does," he said.
Cheryl Healton, president and CEO of the anti-smoking American Legacy Foundation, put it this way: "The price has gone up and the number of places you can smoke has gone down."
The study appears in the Jan. 3 issue of the U.S. Centers for Disease Control and Prevention's Preventing Chronic Disease.
For more about teen smoking, try the U.S. National Library of Medicine.
SOURCES: Leah M. Ranney, Ph.D., associate director, Tobacco Prevention and Evaluation Program, University of North Carolina at Chapel Hill; Cheryl Healton, Dr.P.H., president and CEO, American Legacy Foundation, Washington D.C.; Danny McGoldrick, vice president of research, Campaign for Tobacco-Free Kids, Washington D.C.; Jan. 3, 2013, Preventing Chronic Disease
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