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According to a new study, the rapid spread of e-cigarette use among young teens has not slowed the decline in smoking in the same age group.
Vaccination research has also not prompted 13- to 15-year-olds surveyed in Britain to see smoking in a more positive light, researchers said Tuesday.
The results, published in the BMJ Thorax journal, are the latest to conclude that nicotine-releasing e-cigarettes are not, as previously feared, a tobacco-initiating drug.
"Our research does not support the hypothesis that smoking" renormalized "by e-cigarettes in the United Kingdom during a period of increasing but largely unregulated use in the UK, concluded the report. ;study.
But this has not alleviated the growing concern over the health consequences of vaping, which remains largely unknown, partly because of the novelty of this practice.
Experts point out that it has taken decades to determine that smoking tobacco – which accounts for more than seven million premature deaths each year worldwide – is really dangerous.
A US study of nearly 100,000 adults – presented at a major conference last month – showed that the use of electronic cigarettes increased by 34%, 25 and 55% the probability of heart attacks, coronary heart disease and depression.
Rates of these conditions were much higher among smokers.
Another February study, published in Nature Journal Scientific Reports, linked chemicals used in 90% of vaping systems with impaired lung function.
"We need to take strong action to protect our children from these extremely potent products," the US Surgeon General said in a rare statement released in December, warning of the harmful effects of nicotine on developing brains.
The new findings focused on behavioral and attitudinal changes in a quarter of a million young British teens from 1998 to 2015.
During this period, they found that the percentage of 13- to 15-year-olds who had smoked at least once had dropped from 70 to 27, and that the percentage of regular smokers had increased from 19 to 5%.
Non-renormalized smoking & # 39;
Perceptions have also changed. In 2015, only 27% of young teens said that it was "acceptable to try a cigarette", compared to 70% 15 years earlier.
It is crucial to note that the pace at which these changes occurred has barely slowed, if at all, from 2011 to 2015, when e-cigarettes took off.
Read also: Using the electronic cigarette related to heart problems: study
"The favorable perception of regular smoking in this age group also dropped faster after the proliferation of electronic cigarettes, which one could not have expected if smoking was being in the process of being smoked. "renormalized" ", concluded the authors.
Figures from the rest of Europe and North America suggest similar trends.
In the United States, the use of electronic cigarettes jumped more than 75% in 2018 compared with the previous year, prompting the US Food and Drug Administration to call for stricter regulation, last fall.
According to the US National Institute on Drug Abuse (NIDA), teenagers of all ages are now more likely to vaper than smoking cigarettes.
Nearly 10% of young people aged 13 to 14 said they were vaping in the last month, but less than 4% had lit a cigarette, NIDA reported in November.
The gap is narrower for 17 to 18 year olds, but the number of smokers was still 50% lower than that of electronic cigarette consumers.
In the United States, today, one in 20 adults – more than 10 million people – use the electronic cigarette, while three times more people are smokers.
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