Roughly 10.8 million American adults are currently using e-cigarettes, and more than half of them are under 35 years old, a U.S. study suggests.
One in three e-cigarette users are vaping daily, researchers report in the Annals of Internal Medicine.
“Electronic cigarette use is also closely associated with other high-risk behaviors,” said senior study author Dr. Michael Blaha, director of clinical research for the Johns Hopkins Ciccarone Center for the Prevention of Heart Disease in Baltimore. “The most common pattern of use in the U.S. is dual use, i.e. current use of both traditional cigarettes and electronic cigarettes.”
Twenty-somethings, smokers of traditional cigarettes, unemployed adults, and people who identify as lesbian, bisexual, gay, and transgender (LGBT) are more likely than other individuals to use e-cigarettes, the study also found.
“It is becoming clear that specific vulnerable groups are at highest risk of adopting electronic cigarettes,” Blaha said by email.