Who should smokers believe when it comes to choosing the best
way to stop smoking? Real-world experience or nicotine replacement
therapy (NRT) industry claims? The industry says that NRT "doubles
your chances," based on results from studies that were
placebo-controlled and allegedly double-blind. Real-world evidence
continues to mount that billions of dollars is being made selling
NRT products that offer no advantage over quitting without them. The
latest news from Quebec is another case in point.
(PRWEB) April 27, 2004-- A September 2002 review of California
quitter survey data concluded that "NRT appears no longer effective
in increasing long-term successful cessation in California smokers."
Published in the Journal of the American Medical Association, the
California finding was soon reinforced by real-world survey data
from Minnesota (November 2002) and London (June 2003). Now, data
from a Canadian quitting contest, published in the May 2004 edition
of Preventive Medicine, joins the rising chorus.
THE QUEBEC
CONTEST
A flood of "Quebec 2000 Quit and Win" contest
marketing attracted 20,400 smokers. Quebec 2000 Quit and Win
participants completing the six-week contest had the added incentive
of competing for cash awards, trips and gift certificates. Each
participant was allowed to select his or her own method of quitting
and required to partner-up with a non-smoker who was to provide
on-going social support. The sampling of results proved the
combination to be extremely effective.
At six weeks, 65% of
cold turkey quitters were still not smoking compared to 64% of
nicotine gum and patch users. At the six month mark, 34% of cold
turkey quitters and 34% of nicotine gum users and patch users were
still smoke-free. Again, cold turkey performed as well as
NRT.
As in the California, Minnesota, and London surveys, the
NRT industry's cornerstone marketing assertion that it "doubles a
quitter's chances" proved false. What the Quebec experiment may
evidence is that adding economic incentive and social support to any
cessation method can quadruple the six-month odds of quitting. It
also found that bupropion users (Zyban and Wellbutrin) performed
best at 43%.
WHAT'S WRONG WITH THE INDUSTRY
STUDIES?
Unlike lab-based, formal studies, smoker quitting
surveys like Quebec allow experts to make head-to-head performance
comparisons between those who decide to abruptly end all nicotine
use (quitting cold turkey) and those who desire to continue
receiving nicotine via a growing assortment of nicotine replacement
products.
In lab-based NRT studies participants often sign up
because they want the products; they have a 50% chance of not being
assigned to the placebo group, thus receiving weeks or even months
of free nicotine.
A key element for a valid double-blind
study is that participants cannot tell whether they are getting the
drug or a placebo. Blinding surveys conducted during formal NRT
studies suggest that a substantial percentage of smokers may have
been able to sense that they were no longer receiving
nicotine.
In a Denmark patch study published in the February
1997 edition of the American Journal of Epidemiology, at study's end
only 18.3% of those in the placebo patch group believed that they
had received the real nicotine patch. The authors openly admit that
"the effect of such a blinding failure would probably be a reduction
of the placebo effect."
If people sign up for formal NRT
studies because they want the free product, and they are able to
tell that they are not getting it, could their frustrated
expectations have caused a significant percentage of placebo group
quitters to throw in the towel early, thus providing the industry
with its ballyhooed "twice as effective" odds ratio victory?
In light of the real-world comparisons of people who choose
cold turkey versus people who choose NRT, it's a question worth
considering.
CONCLUSION
According to the American
Cancer Society?s 2003 Cancer Facts & Figures report, 91.2% of
all successful long-term quitters quit entirely on their own without
using any product, service, or produce. If true, it would seem that
cold turkey quitting is alive and well despite a twenty year bashing
by NRT marketing that refuses to acknowledge "real-world"
performance.
Meanwhile, NRT marketing continues to suggest
that only superheros are capable of quitting cold and that NRT
doubles a quitter's chances. The FDA is apparently ignoring actual
product performance -- the real world data -- in allowing such
claims to continue.
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Fact References:
1.
Pierce, JP, et al., Impact of Over-the-Counter Sales on
Effectiveness of Pharmaceutical Aids for Smoking Cessation. Journal
of the American Medical Association, September 11,
2002;288:1260-1264 - link to free full text in PDF format: http://www.fchn.org/fmh/wmchh/articles/sept/otc_smk_cess_aids.pdf
2.
Boyle, RG, et al, Does insurance coverage for drug therapy affect
smoking cessation? Health Affairs 2002 Nov-Dec;21:162-8 - link to
study abstract: http://content.healthaffairs.org/cgi/content/abstract/21/6/162
3.
SmokeFree London, Tobacco in London - Facts and Issues, June 2003,
Figure 14, PDF page 17 - link to report in PDF format: http://www.lho.org.uk/HIL/Lifestyle_and_Behaviour/Attachments/PDF_Files/SmFeeFactsIssues.pdf
4.
Gomez-Zamudio, M, et al, Role of pharmacological aids and social
supports in smoking cessation associated with Quebec's 2000 Quit and
Win campaign, Preventive Medicine 2004 May;38(5):662-7 - link to
study abstract: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15066370
5.
Sonderskov J, et al. Nicotine patches in smoking cessation: a
randomized trial among over-the-counter customers in Denmark.
American Journal of Epidemiology 1997 February;145: 309 to 318 -
link to study abstract: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9054234&dopt=Abstract
6.
American Cancer Society, Cancer Facts and Figures 2003, Table 3,
report page 25, PDF page 27 - link to report in PDF format: http://www.cancer.org/downloads/STT/CAFF2003PWSecured.pdf
About the Author: John R. Polito in a S.C. health educator
who serves as the College of Charleston's nicotine cessation seminar
presenter and is the founder of WhyQuit, the internet's oldest and
largest education and support forum devoted exclusively to the
science and psychology of abrupt nicotine cessation.
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