Far from claims that electronic cigarettes (e-cigarettes) may help curb conventional cigarette use in youth, new research suggests that these increasingly popular products may actually contribute to nicotine addiction.A large, cross-sectional study of US middle school and high school students showed that current e-cigarette smokers were more than 7 times more likely to be current cigarette smokers than their counterparts who had not used e-cigarettes.
The debate over e-cigarettes has centered on whether e-cigarettes could be useful as a harm-reduction strategy in established adult cigarette smokers. The results of our study…suggest that e-cigarettes may contribute to nicotine addiction and are unlikely to discourage conventional cigarette smoking among youths," authors Lauren M. Dutra, ScD, and Stanton A. Glantz, PhD, both from the Center for Tobacco Research and Education, University of California, San Francisco, write.
Battery-operated products, e-cigarettes vaporize nicotine, flavor, and other chemicals that are then inhaled by the user. Currently unregulated, these products are aggressively marketed as a "safe" alternative to conventional tobacco products and as smoking cessation aids.
However, previous research showing high rates of dual use of e-cigarettes and conventional cigarettes brings into question the products' efficacy as cigarette substitutes and/or smoking cessation aids.
The results also showed that in 2011, current cigarette smokers who had ever used e-cigarettes were more likely to intend to quit smoking within the next year. However, e-cigarettes were associated with lower abstinence rates from conventional cigarettes.
Use of e-cigarettes was associated with higher odds of ever or current cigarette smoking, higher odds of established smoking, higher odds of planning to quit smoking among current smokers, and, among experimenters, lower odds of abstinence from conventional cigarettes. Use of e-cigarettes does not discourage, and may encourage, conventional cigarette use among US adolescents, the investigators conclude.
LATEST NEWS : The Los Angeles City Council voted on Tuesday to ban electronic cigarettes, or "vaping," from most public areas, in line with the restrictions already in place on other tobacco products.
Electronic cigarettes, seen by many as a healthy alternative to tobacco smoking, can cause damage to the lungs, scientists from the University of Athens, Greece, explained at the European Respiratory Society's Annual Congress 2014, Vienna, on Sunday.They were asked to use an electronic cigarette for 10 minutes, inhaling the vapors into their lungs. A spirometry test, as well as some others diagnostic procedures were used to measure their airway resistance. Airway resistance is used in respiratory physiology to measure the resistance of the respiratory tract to airflow coming in during inspiration (inhalation) and going out during expiration (exhalation).
They found that using an e-cigarette caused an instant increase in airway resistance that lasted for 10 minutes in the majority of the participants.