title: Cigarette advertising on taxicabs in Boston, Massachusetts (USA).
abstract: OBJECTIVE
  To examine the frequency of tobacco advertisements on taxicabs within Boston, Massachusetts (USA).
  
  
  METHODS
  At seven locations throughout Boston, an observer counted all taxicabs over 30-minute periods in December 1995.
  
  
  METHODS
  Confirmed sightings of taxicabs with cigarette advertisements were recorded with information collected on the cigarette brand and taxicab company.
  
  
  RESULTS
  A total of 314 taxicabs were observed over 210 minutes of observation time, including 127 (40.4%) with cigarette advertisements. Taxicabs with cigarette advertisements were seen once every 1.65 minutes on average, with Marlboro as the most frequently advertised brand (69 of 127 advertisements, 54.3%). Less affluent locations were serviced by greater proportions of taxicabs carrying cigarette advertisements compared with more affluent locations (odds ratio = 2.08, 95% confidence interval = 1.18-3.68).
  
  
  CONCLUSIONS
  Taxicabs represent a major form of exposure to cigarette advertising in Boston.
authors.affiliation: Department of Medicine, Brigham and Women's Hospital, Harvard School of Public Health, Boston, Massachusetts 02115, USA. hsesso@hsph.harvard.edu
authors.forename: H D
authors.initials: HD
authors.lastname: Sesso
authors.forename: I
authors.initials: I
authors.lastname: Kawachi
mesh_terms: D000329:Advertising; D006801:Humans; D008404:Massachusetts; D018986:Motor Vehicles; D012907:Smoking; D014481:United States