The use of e-cigarettes has been increasing rapidly among teens nationwide. In the Connecticut survey, which was conducted in the spring of 2014, 27.9 percent of high schoolers surveyed said they use e-cigarettes. Of those, 18.7 percent were "dual users," who also used the devices to vaporize marijuana.
Those who are male and younger were more likely to vaporize cannabis using e-cigarettes.
Using e-cigarettes to "vape" pot provides two advantages, said researcher Meghan E. Morean, an assistant professor of psychology at Oberlin College who conducted the study while working at a lab at Yale. One, the smell of marijuana isn't as powerful as it is when you smoke it. Second, the device provides a way to disguise what teens are really smoking.
"This is a relatively novel way of using marijuana, and kids are using it at a fairly high rate," Morean said.
In the journal article, the researchers expressed concern about the health risks related to the "increased potency of hash oil and THC-infused waxes compared to combustible cannabis."
"These findings raise concern about the lack of e-cigarette regulations," the researchers wrote in the study.