(HealthDay)—Comprehensive provincial restrictions on electronic cigarette marketing are associated with lower levels of exposure to marketing and lower prevalence of e-cigarette use, according to a Canadian study published online June 29 in Pediatrics. David Hammond, Ph.D., from the University of Waterloo in Canada, and colleagues examined the impact of regulatory restrictions on e-cigarette marketing using repeat, cross-sectional surveys of 12,004 16- to 19-year-olds in Canada, which were completed online in 2017, 2018, and 2019. The researchers found that the percentage of youth surveyed who reported noticing e-cigarette promotions often or very often approximately doubled between 2017 and... [Read more]