Overall, nearly 9 percent of students had vaped marijuana, including 4.5 percent of students in middle school and 12.4 percent of students in high school.
That data, which hasn't yet been formally released to the public, reportedly comes from the National Youth Tobacco Survey - data compiled by the Centers for Disease Control and Prevention (CDC).
That, in essence, is why the makers of some e-cigarette brands saw their stocks jump Wednesday after the U.S. Food and Drug Administration announced a crackdown on the products over concerns about how popular they've become among kids.
"It's research that I believe puts this university and this region on the map". He was not involved in the new report, published Monday in the journal JAMA Pediatrics. In a nutshell: He's highly concerned about their growing popularity among youth.
"These estimates are consistent with or higher than previous reports of cannabis use in e-cigarettes among U.S. and Canadian students", said the report, which did not examine overall rates of vaping among teens.
A new survey suggests Canadians are becoming increasingly anxious about the popularity of vapes and e-cigarettes with people under the age of 18. Trivers said these trends are "comparable to a rollercoaster ride".
Although the media are reporting this as a "vaping device" exploding, it's not clear what actually happened - and the fact Boyd had just bought new batteries is potentially significant.
One of the studies that did exist at the time was an anonymous survey of high school students in CT.
Perhaps this has to do with the types of students surveyed and where they lived.
The FDA says current plans include putting a minimum of 10,000 campaign posters up in high school bathrooms, and that other similar materials will be distributed to schools and teachers as part of the campaign.
In states where marijuana is legal, shoppers can buy cartridges of liquid containing THC, the chemical in marijuana that gets people high, that work with a number of devices.
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Hailey Boyce suffered severe injuries when an e-cigarette device exploded while she was vaping on Mothers' Day weekend of 2016.
One constant among all age ranges was the support for banning fruit, bubble gum, and other vape flavours that may be appealing for younger Canadians, though the 18 to 34 group appeared less enthusiastic than their seniors.
"I'm here to tell them today that this prior approach is over", he said.
Over the previous year, Altria sold $37.2 billion in cigarettes and chewing tobacco, and just $229 million in e-cigs, according to Wells Fargo Securities and research firm Nielsen.
E-cigarettes vaporize nicotine-laced liquid, delivering a potent nicotine hit to users - in some cases at far higher levels than conventional cigarettes. It may not even have a smell that's detectable to others, she added.
"No youth should ever use e-cigs", Surgeon General Dr. Jerome Adams said in a video during Tuesday's announcement.
Sticking to vaping, whether alongside traditional cigarettes or by itself, was more prevalent in the younger demographic (aged 18 to 34) while smoking but not vaping was seen more in the 35 to 55+ age brackets. Only 14% of that same group thought vapes were beneficial, while 33% fell somewhere in between, and 16% stated that they "really can't say".
Among tobacco users of all ages surveyed, 45% of daily smokers and 40% of occasional smokers reported also using e-cigarettes.
"Smoke from cannabis contains numerous same toxins, irritants, and carcinogens as tobacco smoke", said lead study author Katrina Trivers of the U.S. Centers for Disease Control and Prevention in Atlanta.
The rise in teenagers using e-cigarettes has alarmed health officials who worry kids will get addicted to nicotine, a stimulant, and be more likely to try cigarettes.