E-cigarette use by teens linked to later tobacco smoking: study
TORONTO — Teenagers who use electronic cigarettes are at risk of graduating to tobacco smoking, a large Canadian study suggests.
The study of more than 44,000 Grade 9 to 12 students in Ontario and Alberta, published Monday in the Canadian Medical Association Journal (CMAJ), shows a “strong and robust” linkage between so-called vaping and subsequent tobacco use.
“We found that youth that had used e-cigarettes were significantly more likely to start smoking a year later,” said lead researcher David Hammond, a professor in the school of public health at the University of Waterloo.
“They’re more likely to try smoking and they’re more likely to become daily smokers.”


