title: Setting a challenging yet realistic smoking prevalence target for Healthy People 2020: learning from the California experience.
abstract: OBJECTIVE
  We sought to outline an optimistic yet achievable goal for future US smoking prevalence rates based on empirical evidence reflecting the success of smoking control efforts in California.
  
  
  METHODS
  Using a dynamic model and the smoking initiation and cessation rates achieved in California as a guide, we projected US adult smoking prevalence rates through the year 2020.
  
  
  RESULTS
  If smoking initiation and cessation rates for the nation do not change, population dynamics will result in smoking prevalence rates falling to 19.1% in 2010 and 16.8% in 2020. If the country attains California's initiation and cessation rates by 2010, adult smoking prevalence rates will be 18.5% in 2010 and 14.7% as of 2020.
  
  
  CONCLUSIONS
  If California's smoking initiation and cessation rates are attained nationwide, the US smoking prevalence rate could be 5.9 percentage points lower than the 2005 rate by the year 2020, and there would be 10.2 million fewer smokers than in 2005. A target of 14% smoking prevalence by 2020 is aggressive yet feasible, given that it takes into account the constraints imposed by population demographics.
authors: Department of Health Management and Policy, University of Michigan, 109 Observatory Rd, Ann Arbor, MI 48109, USA. dmendez@umich.edu
authors: David
authors: D
authors: Mendez
authors: Kenneth E
authors: KE
authors: Warner
mesh_terms: D000328:Adult; D002140:California / Q000453:epidemiology; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D015995:Prevalence; D011634:Public Health; D012307:Risk Factors; D012309:Risk-Taking; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation; D000074606:Smoking Prevention; D040241:Social Marketing; D014029:Tobacco Use Disorder / Q000453:epidemiology* / Q000517:prevention & control