Large-scale study on smoking cessation and e-cigarette effects in cancer patients

Ключевые моменты
- Study on 46.834 cancer patients compared smoking cessation, e-cigarette switching, and continued use
- In those who quit completely, mortality risk 8% lower, cardiovascular event risk 36% lower
- In e-cigarette switchers, mortality risk down 16%, cardiovascular risk down 28%, but 64.2% were dual users
- Experts view complete cessation as ideal, e-cigarettes as temporary 'harm reduction' tool for those unable to quit
В цифрах
Researchers at Samsung Seoul Hospital analyzed 46.834 patients diagnosed with cancer between 2015 and 2022 who were smoking at the time. 55.3% of patients quit smoking completely, 37.2% continued regular cigarettes, and 7.5% switched to e-cigarettes. 64.2% of those who switched to e-cigarettes were 'dual users' using both products.
After a median 4.2-year follow-up, all-cause mortality risk was 8% lower and major cardiovascular event risk was 36% lower in those who quit completely compared to those who continued smoking. In the group that switched to e-cigarettes, mortality risk decreased by 16% and cardiovascular event risk by 28%.
While researchers emphasized that quitting completely is the best strategy, they stated that e-cigarettes could be considered a 'harm reduction' tool for patients who cannot quit, though caution is advised due to dual use and lung risks.
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Часто задаваемые вопросы
- What is the smoking cessation rate among cancer patients in the study?
- 55.3% of smoking cancer patients quit completely, 37.2% continued regular cigarettes, and 7.5% switched to e-cigarettes.
- Is switching to e-cigarettes as beneficial as quitting completely?
- No. The reduction in mortality and cardiovascular risk is higher in those who quit completely compared to those who switched to e-cigarettes; e-cigarettes are only a 'harm reduction' option for those who cannot quit.
- What is the biggest risk of using e-cigarettes?
- 64.2% of those who switched to e-cigarettes became 'dual users' using both regular cigarettes and e-cigarettes; this eliminates the harm reduction effect and increases the risk of lung complications.
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