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Related Experiment Videos

Quit and win smoking cessation contests: how should effectiveness be evaluated?

S Chapman1, W Smith, G Mowbray

  • 1Department of Community Medicine, University of Sydney, Australia.

Preventive Medicine
|May 1, 1993
PubMed
Summary

Quit smoking lotteries show high self-reported cessation rates, but measuring their true community impact is challenging due to existing trends. Evaluating mass-reach health interventions requires careful consideration of secular effects.

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Area of Science:

  • Public Health
  • Health Behavior Interventions
  • Health Program Evaluation

Background:

  • Evaluating smoking cessation interventions is complex due to multiple influences and declining smoking rates.
  • Quit smoking lotteries are popular mass-reach strategies, but their true impact is debated.
  • Previous evaluations often overlook secular trends and community-wide effects.

Purpose of the Study:

  • To assess the effectiveness of a quit smoking lottery.
  • To determine if lotteries concentrate existing cessation trends or increase overall community quit rates.
  • To discuss the challenges in evaluating discrete health promotion interventions in large populations.

Main Methods:

  • A quit smoking lottery was conducted with 101,277 participants.

Related Experiment Videos

  • The study analyzed self-reported smoke-free status at 4 months among lottery entrants (n=1,167).
  • Results were compared against a predicted increase in the background 4-month quit rate.

    • Main Results:

    • 29.2% of lottery entrants self-reported being smoke-free at 4 months.
    • This rate was considered against a predicted minimum 10% increase over the background quit rate (0.7%).
    • The study highlights the difficulty in measuring the precise impact of the lottery.

    Conclusions:

    • The observed cessation rates, while seemingly high, are difficult to definitively attribute to the lottery intervention.
    • Measuring the true community-level impact of such interventions remains a significant challenge.
    • The study underscores the need for refined methods to evaluate health promotion programs within large communities.