title: Local restaurant smoking regulations and the adolescent smoking initiation process: results of a multilevel contextual analysis among Massachusetts youth.
abstract: OBJECTIVE
  To assess whether smoke-free restaurant laws influence the progression from (1) never smoking to early experimentation and (2) early experimentation to established smoking.
  
  
  METHODS
  A longitudinal, 4-year, 3-wave study of a representative sample of Massachusetts youth.
  
  
  METHODS
  A total of 301 Massachusetts communities.
  
  
  METHODS
  Study participants were 3834 Massachusetts youths aged 12 to 17 years at baseline, from January 2, 2001, to June 18, 2002, of whom 2791 (72.8%) were reinterviewed after 2 years (from January 30, 2003, to July 31, 2004) and 2217 (57.8%) were reinterviewed after 4 years (from February 16, 2005, to March 26, 2006). Wave 3 respondents were recruited from both those who responded at wave 2 and those who did not.
  
  
  METHODS
  The primary predictor of interest is the strength of the local restaurant smoking regulation in the respondents' town of residence at the baseline of each transition period.
  
  
  METHODS
  (1) Overall progression to established smoking (having smoked > or =100 cigarettes in one's lifetime), (2) transition from nonsmoking (never having puffed a cigarette) to experimentation, and (3) transition from experimentation to established smoking.
  
  
  RESULTS
  Youths living in towns with a strong restaurant smoking regulation at baseline had significantly lower odds of progressing to established smoking (odds ratio, 0.60; 95% confidence interval, 0.42-0.85) compared with those living in towns with weak regulations. The observed association between strong restaurant smoking regulations and impeded progression to established smoking was entirely due to an effect on the transition from experimentation to established smoking (odds ratio, 0.53; 95% confidence interval, 0.33-0.86).
  
  
  CONCLUSIONS
  Local smoke-free restaurant laws may significantly lower youth smoking initiation by impeding the progression from cigarette experimentation to established smoking.
authors.affiliation: Department of Social and Behavioral Sciences, Boston University School of Public Health, 715 Albany St, TW2, Boston, Massachusetts 02118, USA. mbsiegel@bu.edu
authors.forename: Michael
authors.initials: M
authors.lastname: Siegel
authors.forename: Alison B
authors.initials: AB
authors.lastname: Albers
authors.forename: Debbie M
authors.initials: DM
authors.lastname: Cheng
authors.forename: William L
authors.initials: WL
authors.lastname: Hamilton
authors.forename: Lois
authors.initials: L
authors.lastname: Biener
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D033161:Government Regulation; D006801:Humans; D009111:Local Government; D008297:Male; D008404:Massachusetts / Q000453:epidemiology; D012147:Restaurants / Q000331:legislation & jurisprudence*; D012907:Smoking / Q000453:epidemiology / Q000331:legislation & jurisprudence*