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 E-cigarettes, first introduced in China in 2004, are battery-powered
devices that let users inhale nicotine-infused vapors.
"There is a lot of concern by the public health community that
e-cigarettes may be recruiting a whole new group of people who never
smoked cigarettes," said lead author Jessica Barrington-Trimis of
the University of Southern California in Los Angeles.
Previous studies have found links between use of traditional and
electronic cigarettes, Barrington-Trimis said. But the new study
suggests some teens picking up e-cigarettes belong to a unique
group.
Many teens in the new study who said they'd recently used
e-cigarettes had never smoked traditional cigarettes, the
researchers found.
"If you think of e-cigarette and cigarette use as two circles, the
overlap isn’t as big as expected," Barrington-Trimis said.
Using data collected in 2014 from 2,084 Southern California teens,
the authors found that about 25 percent reported ever using
e-cigarettes and about 20 percent reported ever using traditional
cigarettes.
About 10 percent had used an e-cigarette within the past 30 days,
compared to about 6 percent reporting recent traditional cigarette
use.
Teens were more likely to use e-cigarettes or traditional cigarettes
if either product was used at home, if friends used either product
or if peers viewed use of either product positively, the researchers
reported in Pediatrics.
Fourteen percent of teens thought e-cigarettes are not harmful,
compared to about 1 percent who thought cigarettes are not harmful.
The youngsters' understanding of possible harms from e-cigarettes or
traditional cigarettes was tied to their likelihood of using either
product.
Overall, the use of e-cigarettes and traditional cigarettes was
linked, but about 41 percent of current e-cigarette users had never
smoked traditional cigarettes.
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The teens felt their peers were more likely to accept their
e-cigarette use than traditional cigarette use.
The new study can't say e-cigarette use leads to use of traditional
cigarettes, but the researchers suggest the new devices may lead to
the "renormalization" of tobacco products.
"Our findings really suggest there’s a lot of kids who are using
these e-cigarettes," Barrington-Trimis said.
The lack of research makes it difficult to know what to tell people
about e-cigarettes, she added.
She said parents should tell their children that while research into
the health effects of e-cigarettes is still in its infancy, nicotine
is known to impact youngsters' developing brains.
Also, she said, little is known about the chemicals used to create
the different flavors of e-cigarette vapors.
"Parents should just be aware if their teens are hanging out with
other who are using these products," Barrington-Trimis said.
SOURCE: http://bit.ly/1OwuIrQ Pediatrics, online July 27, 2015.
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