Examining Differences in Real-World Effectiveness of e-Cigarettes for Smoking Cessation by Source of Purchase in England: An Observational Study of Different Contexts Before and After the COVID-19 Pandemic
2024

Effectiveness of e-Cigarettes for Quitting Smoking in England

Sample size: 1284 publication Evidence: low

Author Information

Author(s): Sharon Cox, Sarah Jackson, Jamie Brown, Loren Kock, Lion Shahab

Primary Institution: University College London

Hypothesis

Does the effectiveness of e-cigarettes for smoking cessation differ by source of purchase?

Conclusion

The study found inconclusive evidence that purchasing e-cigarettes from specialist vape shops increases smoking cessation rates compared to other sources.

Supporting Evidence

  • 48.1% of participants usually purchased e-cigarettes from vape shops.
  • The percentage of vape shop purchases declined from 53.6% prepandemic to 40.6% during the pandemic.
  • Those purchasing from vape shops had 25% higher odds of successful quitting, but this was not statistically significant.

Takeaway

This study looked at whether buying e-cigarettes from vape shops helps people quit smoking better than buying them from other places. The results were unclear.

Methodology

The study used repeat-cross-sectional nationally representative surveys conducted between January 2017 and August 2023, focusing on participants who attempted to quit smoking and used e-cigarettes.

Potential Biases

Potential self-selection bias may affect the results, as those who choose different purchase sources may differ in unmeasured ways related to quitting success.

Limitations

The study only included current vapers, which may introduce selection bias, and relied on self-reported data, which can lead to recall bias.

Participant Demographics

Participants were adults aged 18 and older, with 46.9% being women.

Statistical Information

Confidence Interval

95% CI = .92 to 1.76

Digital Object Identifier (DOI)

10.1093/ntr/ntae178

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication