Wednesday, December 11, 2013

The CDC Abuses the Facts About E-Cigarettes – Part II

In a previous post (here), I noted false and misleading information in a U.S. Centers for Disease Control and Prevention press release about e-cigarette use by youth. 

The CDC reported that 76.3% of youth using an e-cigarette in the past 30 days had also smoked at least once in the same period, and it used that number to suggest that e-cigarettes are a gateway to youth smoking.  First, there is no evidence in the dataset to support that claim.  Second, the CDC didn’t report survey information on other tobacco products.  Only about 10% of vapers were not concurrent users of any tobacco product, and only about 5% had no past history of smoking. 

Here, I’ll present other important facts that the CDC didn’t share about youth vapers who were questioned in the 2012 National Youth Tobacco Survey (NYTS).

The NYTS is a comprehensive survey of youth tobacco use, attitudes and perceptions; it contains a lot of e-cigarette information that the CDC failed to report.  I analyzed a number of questions relative to use of both cigarettes and e-cigarettes, comparing smokers who had also vaped in the past 30 days (smoker-vapers) with those who had not (exclusive smokers).  The results, summarized in the table below, illustrate differences (all of which are statistically significant – p< 0.05) between the two groups.

Here are the relevant NYTS questions and answers for smoker-vapers and exclusive smokers: 

Question 12.  About how many cigarettes have you smoked in your entire life?  Sixty-four percent of smoker-vapers had consumed over 5 packs of cigarettes, compared with 39% of exclusive smokers. 

Question 13.  During the past 30 days, on how many days did you smoke cigarettes?  Fifty-one percent of smoker-vapers reported smoking on 20 days or more, compared with 29% of exclusive smokers. 

Question 14.  During the past 30 days, on the days you smoked, how many cigarettes did you smoke per day?  Thirty-one percent of smoker-vapers consumed 6 or more cigarettes, versus 18% of exclusive smokers.

Question 57.  Are you seriously thinking about quitting cigarettes?  Forty-one percent of smoker-vapers said they were not seriously thinking about quitting, compared with 28% of exclusive smokers. 

Question 58.  If you decided to quit cigarettes for good, how likely is it that you would succeed?  Thirty-two percent of smoker-vapers labeled themselves as somewhat or very unlikely to succeed, compared with only 17% of exclusive smokers. 

There was another insightful survey item:

Question 69.  Do you believe that electronic cigarettes or e-cigarettes…are (less harmful, equally harmful, or more harmful) than regular cigarettes?  Seventy-two percent of smoker-vapers correctly answered that e-cigarettes were less harmful, and 51% of exclusive smokers also got it right.  These are impressive numbers, given that tobacco opponents uniformly insist that “we don’t yet understand the long-term effects of these novel tobacco products,” as FDA tobacco center chief Mitch Zeller said in the CDC press release (here). 

This post is not a comprehensive analysis of the 2012 NYTS findings on e-cigarettes.  My purpose is to report some interesting findings that the CDC failed to mention in their PR campaign to portray e-cigarettes as a teenage scourge.

Federal officials should fully and accurately report the results of taxpayer-funded research.  Americans – including teenagers – deserve the truth about e-cigarettes.

Percentage of Smoker-Vapers and Exclusive Smokers With Answers to Selected Questions, NYTS 2012
Question=AnswerSmoker-VapersExclusive Smokers
Cigarettes smoked, entire life= 5+ packs69%39%
Days past month smoked= 20+51%29%
Cigarettes on days smoked= 6+31%18%
Seriously thinking about quitting cigarettes= No41%28%
Successful quitting= somewhat or very unlikely32%17%
E-cigarettes less harmful than cigarettes72%51%


G. Kahn said...

Brad, thank you so much for the honest work you do on behalf of former smokers everywhere.

What the CDC, FDA and other regulatory agencies are doing to misrepresent the science in this area is scandalous. They must be held accountable and forced to respond publicly to these issues.

Without folks such as yourself and Dr. Siegel accurately reporting the data and results, these scoundrels would get away with it!

Anonymous said...

Can you define the term "smoker-Vaper" for me please. I assume it means "smoker switched/switching to Vaper" but I need clarification.

Brad Rodu said...

As defined in the third paragraph, smoker-vapers had smoked at least one cigarette in the past 30 days AND had used an e-cigarette during the same period. These are criteria used by the CDC to classify teenagers as current users.

firehousevapors said...

Splendid ,Media reports have primarily focused on the rule’s impact on e-cigarettes. The FDA would ban sales to youths, allow flavorings and set a two-year timeframe for approval of existing products.Thanks for sharing this information.