Panel A: Changes in never-cigarette smoking status among new past-month e-cigarette users (18–24 years): PATH study, 2013–2018
Panel B: Changes in never-cigarette smoking status among new past-month e-cigarette users (≥25 years): PATH study, 2013–2018
Panel C: Transitions of past-month e-cigarette use among youth (18–24 years) according to never vs. ever cigarette smoking: PATH study, 2013–2018
Panel D: Transitions of past-month e-cigarette use among youth (≥25 years) according to never vs. ever cigarette smoking: PATH study, 2013–2018
*p<0.001 for difference between transition categories at Wave 2/3/4 among e-cigarette never cigarette users and e-cigarette ever cigarette users