- Among current tobacco smokers, daily use of electronic cigarettes (e-cigarettes), commonly known as vaping, was tied to reduced cigarette smoking and higher odds of smoking cessation.
- However, daily use of e-cigarettes raised the risk for relapse in former smokers.
Why this matters
- 15.3% of adult smokers in the United States and 14.6% in Europe use e-cigarettes.
- 5400 current smokers and 2025 former smokers.
- Funding: Agence Nationale de la Recherche; MSD; AstraZeneca; others.
- 15.2% of current smokers and 8.7% of former smokers reported daily use of e-cigarettes.
- In adjusted analysis, e-cigarette users smoked fewer estimated cigarettes daily than nonusers (11.2 vs 12.2; P<.001 and showed a greater decrease in cigarettes during follow-up> (−4.4 vs −2.7; P<.001>
- E-cigarette users were more likely to quit smoking during follow-up than non-EC users (aRR, 1.67; P<.001>
- The effect was stronger with e-cigarette use >1 year (aRR, 2.03; 95% CI, 1.82-2.27) vs
- All-French cohort.
- No data on the daily frequency of e-cigarette use.