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Table 2 Weighted prevalence of smoking and vaping status for all three waves

From: Perception of the relative harm of electronic cigarettes compared to cigarettes amongst US adults from 2013 to 2016: analysis of the Population Assessment of Tobacco and Health (PATH) study data

Cigarette; EC Wave 1 Wave 2 Wave 3
___ ; ___ 0.0% 0.1% 0.7%
___; CUR 0.0% 0.0% 0.1%
___;FMR 0.0% 0.2% 0.4%
___;NVR 0.4% 4.4% 10.2%
CUR;___ 0.0% 2.7% 3.7%
CUR;CUR 4.9% 4.4% 3.3%
CUR;FMR 8.6% 8.2% 8.6%
CUR;NVR 8.7% 6.5% 5.5%
FMR;___ 0.0% 1.8% 2.6%
FMR;CUR 1.2% 1.6% 1.7%
FMR;FMR 4.5% 5% 5.3%
FMR;NVR 42.5% 36.2% 29.5%
NVR;___ 0% 0.3% 0.6%
NVR;CUR 0.1% 0.1% 0.2%
NVR;FMR 0.5% 0.5% 0.8%
NVR;NVR 28.5% 27.8% 26.8%
  1. A small proportion of respondents have at least one undefined status for vaping and/or smoking. CUR corresponds to current smoker or vapers, including “current experimental” (defined as Wave 3 adult respondents who have not smoked at least 100 cigarettes in their lifetime, and currently smoke every day or some days or have ever used an EC, have never used fairly regularly, and uses every day or some days) and “current established” (defined as Wave 3 adult respondents who have smoked at least 100 cigarettes in their lifetime, and currently smoke every day or some days or have ever used an EC, have used fairly regularly, and uses every day or some days). NVR corresponds to never smoker or vapers (defined as never smoked a cigarette, even one or two puffs or never used an EC, even once or twice) FMR corresponds to former smoker or vapers including “former experimental” (defined as ever smoked a cigarette, has not smoked more than 100 cigarettes in lifetime, and now does not smoke at all or have ever used an EC, have never used fairly regularly, and does not use at all) and “former established” (defined as ever smoked a cigarette, has smoked more than 100 cigarettes in lifetime, and now does not smoke at all or have ever used an EC, has used fairly regularly, and currently does not use at all). ___ means that the status has not been defined