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Great American Smokeout

Also: GASO

American Cancer Society's annual quit-smoking day on the third Thursday of November, held nationally since 1977. It asks smokers to quit for one day, or start a quit plan, and relies on news coverage and local events.

Years
1977–now
Country
United States
Topic
Tobacco
Asks people to
Stop
Strategy
Cessation service linkSimple instruction
Channel
EventsPrintSocial (organic)TV
Audience
Adults
Adult smokers.

Evidence

ObservationalPositive

Comparing Smokeout days with expected levels (Ayers 2016): cessation-related news rose 61%, Google searches 25% and quitline calls 42% on the day. That amounts to about 61,000 extra help-seeking events per year, about two-thirds of a typical New Year's Day effect.

Sponsor (who paid)

  • American Cancer Society NGO, funder and creator

Credits (who made it)

Not recorded yet.

Related campaigns

Sources

  1. Ayers JW et al. Leveraging Big Data to Improve Health Awareness Campaigns: A Novel Evaluation of the Great American Smokeout. JMIR Public Health Surveill 2016;2(1):e16 evaluation · 2016 · DOI 10.2196/publichealth.5304 · PMID 27227151

Research notes

Created 2026-10-22 by literature mining (PubMed/OpenAlex); evidence level, outcome and findings are paraphrased from the evaluation abstracts, full texts not read. No credits: no page naming an agency was checked. Evaluation measures online help-seeking and quitline calls, not quit success. Start year 1977 is the first national Smokeout (ACS history); confirm on cancer.org.

Record cases/acs-great-american-smokeout.json, updated 2026-10-22· Link to this campaign