A new study has found that approximately 10.8 million American adults are now using e-cigarettes, and more than half of the users are under the age of 35, Reuters reported.

The study Prevalence and Distribution of E-Cigarette Use among U.S. Adults: Behavioral Risk Factor Surveillance System, 2016, which was published in the Annals of Internal Medicine, is based on self-reported data from nearly 467,000 US adults.
The study concludes that e-cigarette use is especially common in younger adults, smokers of conventional cigarettes, unemployed persons, LGBT persons, according to the self-reported data. In addition to that, the study found that one in three users currently vape on a daily basis and men were more likely to vape, Reuters reported.
Senior study author Dr Michael Blaha, director of clinical research for the Johns Hopkins Ciccarone Center, commented on the findings saying, “The most common pattern of use in the U.S. is dual use, i.e. current use of both traditional cigarettes and electronic cigarettes.”
The study can be found here.