In a survey that included 3,200 high-school students in an urban North Carolina county, researchers found that about 15% of the respondents admitted using electronic cigarettes at least once. Among e-cigarette users, 35% said the product is safer than other tobacco products, compared with 3% among nonusers, according to the report presented at the American Academy of Child and Adolescent Psychiatry meeting. Between 2011 and 2012, e-cigarette use increased twofold among high-school students, researchers noted.

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