Vaping linked to cannabis use in young people, study finds

Canadian pediatrician Dr. Nicholas Chadi co-authored the research

A man smokes an electronic cigarette. THE CANADIAN PRESS/AP/Nam Y. Huh

Teens and young adults who use electronic cigarettes are significantly more likely to use cannabis as well, according to a new study co-authored by a Canadian researcher.

Pediatrician Nicholas Chadi’s analysis of previous research, published in JAMA Pediatrics, found that the likelihood of marijuana use was three to four times higher among youth who vaped.

One of the key findings showed the risk for younger adolescents aged 12 to 17 was higher than for young adults aged 18 to 24 years.

“It’s an important discovery for us,” said Chadi, who is now based at Montreal’s Ste-Justine Hospital but conducted the research during a previous posting in Boston.

“The risk is higher for both sub-groups, but it’s almost twice as high for the younger ones.”

The study analyzed 21 previous academic papers encompassing some 130,000 participants. Chadi worked on the project while he was a pediatric addiction fellow at Boston Children’s Hospital and Harvard Medical School.

The results are in line with current medical knowledge that shows young brains are less developed and more susceptible to substance use and addiction, Chadi said in an interview.

Both nicotine and cannabis affect the neural pathways associated with pleasure and reward. Chadi said both substances could make the brain more sensitive to other psychoactive subtances and addictive behaviours during adulthood.

“The younger we are, the more the brain is susceptible to becoming addicted to substances, therefore the risk of consuming nicotine or vaping is even higher for younger teenagers,” he said.

He said the analysis doesn’t go so far as to conclude that vaping leads directly to cannabis use, but it contributes to a growing body of work that appears to suggest a link.

“We can’t prove a link of causality,” he said. But with a large number of studies pointing in the same direction, “we have a good reason to think that exposure to vaping is part of the cause of initiation to marijuana.”

The strongest link was found in younger subjects who combined vaping with tobacco or alcohol consumption. It’s not impossible that these youth are simply more susceptible to substance consumption, Chadi said, although the studies tried to limit certain factors, such as addiction or mental illness.

Studies like this suggest the nicotine used in e-cigarettes is just as dangerous, if not more, he said, than the nicotine in traditional cigarettes when it comes to young teens.

READ MORE: Vaping among Canadian teens spiked 74 per cent in one year, study suggests

“It’s very important from a public health point of view, because it reinforces the message that e-cigarettes are not at all a tool to promote teen health, and on the contrary, it can increase the problems of dependence and addiction among those youth.”

Vaping is often falsely perceived as a banal and risk-free activity. However, other studies have shown that vaping as a teen increases the risk of smoking traditional cigarettes, Chadi said.

“We now realize that the vast majority of teens who vape probably have never touched a traditional cigarette or other drugs,” he said. “These devices are so addictive and well-made for youth that the youth fall into the trap; they develop a dependence and go find other sources of nicotine and other drugs.”

Jean-Benoit Legault, The Canadian Press

Like us on Facebook and follow us on Twitter

Just Posted

Two Campbell River First Nations advance to final stage of treaty negotiation

The Campbell River-based Wei Wai Kum and Kwiakah First Nations have signed… Continue reading

City of Campbell River to replace pumper truck at No. 2 Hall

Old truck to be moved into reserve roll for five years before decision is made on disposal options

Vehicles collide on Highway 19 in North Campbell River

Emergency crews tend to the occupant of a vehicle involved in a… Continue reading

Campbell River Art Gallery receives major funding from the Canada Council for the Arts

The Campbell River Art Gallery (CRAG) received a funding increase of $124,000… Continue reading

VIDEO: Langley Ribfest met with protesters

Groups that oppose the event for various reasons plan to be on site each of the three days.

Canadians killed in Afghanistan honoured during emotional dedication ceremony

One-hundred-fifty-eight Canadian soldiers died during the mission

It’s snow joke: Up to 30 cm of snow expected to fall in northeastern B.C.

Alaska Highway, Fort Nelson to be hit with August snowstorm, according to Environment Canada

‘I’m just absolutely disgusted’: Husband furious after B.C. Mountie’s killer gets day parole

Kenneth Fenton was sentenced to prison after he fatally struck Const. Sarah Beckett’s cruiser

Sea-to-Sky Gondola in B.C. likely out of commission until 2020

Sea to Sky Gondola carries between 1,500 and 3,000 people every day during the summer season

Helicopter-riding dog Mr. Bentley now featured on cans of new B.C.-made beer

Partial proceeds from every pack go to Children’s Wish

PHOTOS: Weapons seized at Portland right-wing rally, counterprotests

Not all who gathered Saturday were with right-wing groups or antifa

Ferries employees participating in Denman Island cleanup for plastic-shedding ferry

The cleanup comes a few weeks after one organized by residents of the Island

Discussion on grief and loss between Stephen Colbert, Anderson Cooper goes viral

The exchange includes emotional question from Cooper, and outlook on grief as a child

Most Read