Skip to main content

Table 1 Cross Classifications of E-Cigarette and Cigarette Use

From: Socioeconomic patterning of vaping by smoking status among UK adults and youth

  Cigarette Usea
Never Smoker Ex-Smoker Current Smoker
E-Cigarette Use Non-Vaperb Non-Users Ex-Smoker who does not vape Smoker who does not vape
Vaper Vaper who has never smoked Ex-Smoker who vapes Dual-Use
  1. aFor youth, considering low prevalence, ex-smokers and current smokers were combined into a single category of ever-smokers
  2. bNon-vaping includes ex and never vapers as we did not think it important to distinguish these categories for our purposes here