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Quit and Win contests for smoking cessationCahill K, Perera R
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SummaryDo Quit and Win contests encourage people to give up smokingControlled trials suggest that quit and win contests may help some smokers to quit, but they have little effect on community smoking rates. Fewer than one smoker in 500 quits because of the contests. Deception levels, where they can be measured, are often high. International quit and win contests are often well supported, especially in developing countries, but there is no clear evidence from trials that they are effective.
This is a Cochrane review abstract and plain language summary, prepared and maintained by The Cochrane Collaboration, currently published in The Cochrane Database of Systematic Reviews 2010 Issue 1, Copyright © 2010 The Cochrane Collaboration. Published by John Wiley and Sons, Ltd.. The full text of the review is available in The Cochrane Library (ISSN 1464-780X).
This version first published online:
April 20. 2005 AbstractBackgroundQuit and Win contests were developed in the 1980s by the Minnesota Heart Health Program, and have been widely used since then as a population-based smoking cessation intervention at local, national and international level. Since 1994 an international contest has been held every two years in as many as 80 countries (2002). ObjectivesTo determine whether quit and win contests can deliver higher long-term quit rates than baseline community quit rates. Search strategyWe searched the Cochrane Tobacco Addiction Group Specialized Register, with additional searches of MEDLINE, EMBASE, CINAHL, PsycINFO and Google Scholar. Search terms included competition*, quit and win, quit to win, contest*, prize*. Most recent search date was November 2007. Selection criteriaWe considered randomized controlled trials, allocating individuals or communities to experimental or control conditions. We also considered controlled studies with baseline and post-intervention measures. Data collection and analysisData were extracted by one author and checked by the second. We contacted study authors for additional data where necessary. The main outcome measure was abstinence from smoking for at least six months from the start of the intervention. We used the most rigorous definition of abstinence in each trial, and biochemically validated rates where available. We decided against performing a meta-analysis, because of the heterogeneity of the included studies, and the small number of scientifically valid studies. Main resultsFive studies met our inclusion criteria. Three demonstrated significantly higher quit rates (8% to 20%) for the quit and win group than for the control group at the 12-month assessment. However, the population impact measure, where available, suggests that the effect of contests on community prevalence of smoking is small, with fewer than one in 500 smokers quitting because of the contest. Levels of deception, where they could be quantified, were high. Although surveys suggest that international quit and win contests may be effective, especially in developing countries, the lack of controlled studies precludes any firm conclusions from this review. Authors' conclusionsQuit and win contests at local and regional level appear to deliver quit rates above baseline community rates, although the population impact of the contests seems to be relatively low. Contests may be subject to levels of deception which could compromise the validity of the intervention. International contests may prove to be an effective mechanism, particularly in developing countries, but a lack of well-designed comparative studies precludes any firm conclusions. |