Tobacco Asia

Volume 18, Number 2

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Page 23 of 71

24 tobaccoasia TOBACCO PRODUCTS 产品新闻 Available for iPad free from the iTunes store now BAT Toxicants, BAT's rst science app. The BAT Toxicants app. for iPad describes the results of our rst clinical study of reduced toxicant prototype cigarettes and the underlying technologies that were used. Search for 'BAT Toxicants' Comparing nicotine delivery from the e-cigarettes to those from conven- tional cigarettes, the researchers found that it took 35 minutes of vaping with the advanced e-cigarette model at high wattage to reach plasma levels similar to smoking a conventional cigarette for five minutes, while vaping with the ciga-lite for 65 minutes still did not deliver the same levels of nicotine as smoking a regular cigarette. Participants in the trial reported that the advanced e-cigarette models reduced cravings more than the ciga-lite, or, in other words, were perceived to be more satisfying by the users. They also found that the advanced models were more likely to provide a so-called "throat hit" even though they produced more throat burning, and found those e-cigarette models to have a greater similarity to a conventional cigarette. The participants reported no perceivable differences in other effects such as calming, concentra- tion and taste. Study on E-Cigs by UCSF "Bogus Science" and "Dishonest" A research letter published in JAMA Internal Medicine on March 24, presented the findings of a study conducted by researchers from the Center for Tobacco Control Research and Education at the University of California, San Francisco (UCSF), purporting that e-cigarettes are ineffective for smoking cessation. Dr. Michael Siegel of the Boston University School of Public Health has refuted the study as being "bogus science" and "dishonest" due to various inconsistencies in the research method- ology and data analysis. Dr. Siegel, who has 25 years of experience in tobacco control, has conducted extensive research on second-hand smoke and cigarette advertising as well as published nearly 70 papers related to tobacco. UCSF researchers concluded that e-cigarettes "may not increase the rate of smoking cessation," having reached this conclusion through a survey of 949 adult smokers first interviewed in 2011 and followed-up one year later. At the time of the first interview, out of the 949 smokers, 88 had used e-cigarettes at least once in the past month. Dr. Siegel's dispute was that the study only examines the percentage of quitting among all smokers who had used e-cigarettes, no matter what reason, instead of examining the smokers who wanted to quit smoking and are using e-cigarettes to do so. He goes on to point out that the researchers actually knew that the majority of the e-cigarette users in their study had little or no interest in quitting smoking and were not using e-cigarettes in an attempt to quit. He also mentioned that a table in the research letter showed that only 8% of the 88 e-cigarette users reported that they were trying to quit smoking at the time, and only 39.8% had the intention to quit in the next six months. This "dishonesty in research" led to Dr. Siegel's own conclusion that "it would be tragedy if policy makers use the conclusions of this "study" to draw conclusions about the effectiveness of electronic cigarettes for smoking cessation purposes."

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