title: Waterpipe tobacco and electronic cigarette use in a southeast London adult sample: a cross-sectional analysis.
abstract: Waterpipe tobacco and electronic cigarettes (e-cigarettes) share several features: rising popularity, use of product flavourings and concerns about marketing to youth. We sought to compare prevalence and predictors of waterpipe tobacco and e-cigarette use, and explore knowledge of waterpipe tobacco and support for interventions.
  
  
  
  We used convenience sampling methods to conduct a cross-sectional survey among adults in the ethnically diverse southeast London area. Multivariate logistic regression identified predictors of waterpipe and e-cigarette use. Predictor variables were age, gender, ethnicity and current (past 30-day) cigarette use.
  
  
  
  Of 1176 respondents (23.0% aged 25-34 years, 56.0% male, 57.4% white ethnicity and 30.4% current cigarette smokers), 31.0% had tried waterpipe tobacco and 7.4% had tried e-cigarettes. Both products were significantly associated with younger age groups, non-white ethnicities and use of each other. Waterpipe tobacco was independently associated with consumption of cigarettes while e-cigarettes were not. Among those aware of waterpipe, a third answered incorrectly to knowledge questions. Among those self-identified as coming from a traditional waterpipe-using community, two-thirds supported further legislative and health promotion waterpipe interventions.
  
  
  
  Waterpipe tobacco was common and more prevalent than e-cigarettes in this population. Interventions to prevent and control waterpipe are unlikely to marginalize traditional waterpipe-using communities.
authors: Academic Unit of Primary Care and Population Sciences, University of Southampton, Southampton, Hampshire SO16 6YD, UK Department of Primary Care and Public Health, Imperial College London, Hammersmith W6 8RP, UK.
authors: Mohammed
authors: M
authors: Jawad
authors: Community and Safety Enforcement on Behalf of the South East London Illegal Tobacco Network, Southwark Council, London SE1 2QH, UK.
authors: Gerald
authors: G
authors: Power
mesh_terms: D000328:Adult; D000367:Age Factors; D003430:Cross-Sectional Studies; D006801:Humans; D008131:London / Q000453:epidemiology; D015995:Prevalence; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology; D000072137:Vaping / Q000706:statistics & numerical data*; D000073867:Water Pipe Smoking / Q000453:epidemiology*
keywords: epidemiology; smoking; socioeconomic factors