{
  "abstract": "Background This study considers recent trends in combustible and e-cigarette use among US young adults who smoked cigarettes in adolescence, who are the originating source of most adults who smoke.Methods Data come from the Monitoring the Future study, which includes young adults aged 19–30 who were first surveyed in 12th grade as part of a nationally-representative sample. The analysis centres on 3623 observations from 2377 young adults surveyed from 2017 to 2022 who reported they had ever smoked a combustible cigarette in the initial, 12th grade survey.Results Among young adults who had smoked in adolescence, the percentage who used a combustible cigarette currently (in the past 30 days) significantly declined from 45% in 2017–2018 to 35% in 2021–2022. The percentage who currently used nicotine hovered around 50%, as measured by current use of an e-cigarette or combustible cigarette and this percentage did not significantly trend over the study period. The percentage who currently used e-cigarettes exclusively and not combustible cigarettes tripled from 6% in 2017–2018 to 21% in 2021–2022. About half of this exclusive e-cigarette group deliberately used e-cigarettes to quit combustible cigarettes, in all years. Dual use of both e-cigarettes and combustible cigarettes significantly increased from 11% in 2017–2018 to 17% in 2021–2022. Trends were robust in multivariable regression analyses that controlled demographics.Conclusion Among young adults who had smoked in adolescence, a 10-point decline in cigarette prevalence from 2017 to 2022 coincided with a 7-point increase in the percentage who deliberately used e-cigarettes to quit combustible cigarettes.",
  "authors": [
    {
      "affiliations": [
        "Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA"
      ],
      "name": "Richard Miech"
    },
    {
      "affiliations": [
        "Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA"
      ],
      "name": "Adam Leventhal"
    },
    {
      "affiliations": [
        "Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA"
      ],
      "name": "Megan Patrick"
    },
    {
      "affiliations": [
        "University of Michigan, Ann Arbor, Michigan, USA"
      ],
      "name": "Nicolas Rodriguez"
    }
  ],
  "title": "Trends in use of cigarettes and e-cigarettes among young adults who had smoked in adolescence: 2017–2022",
  "uid": "38d2cdf2-d882-5f72-a67f-ef63239c6fc7"
}