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# Most Korean dual users of heated tobacco and cigarettes reverted to cigarettes alone
- URL: https://www.coios.me/most-korean-dual-users-of-heated-tobacco-and-cigarettes/
- Published: 2026-10-03T13:25:38.000Z
- Updated: 2026-10-03T17:25:39.000Z
- Description: In 7,260,125 Korean adults screened three times between 2019 and 2023, heated tobacco and e-cigarette use was associated with higher odds of cigarette cessation but also of initiation and relapse, and with lower odds of stopping all tobacco.
- Author: Daniel Ryan
- Tags: Behavioural science, Smoking and vaping, South Korea, #peer-reviewed, #refines, #item, #source-2026-09

Korean National Health Insurance screening records for 7,260,125 adults across three biennial rounds from 2019 to 2023 were used to model transitions between combustible cigarettes, heated tobacco products and e-cigarettes. Current users of heated tobacco or e-cigarettes had higher odds of cigarette cessation but also of initiation and relapse, and lower odds of discontinuing all tobacco, and more than 70% of dual users of cigarettes and heated tobacco moved to cigarette-only use.

*Why it is interesting: Associations run towards cessation and towards initiation and relapse in the same cohort, and the authors describe the net public health impact as uncertain.*

Source

[Tobacco Control, 30 September 2026](https://doi.org/10.1136/tc-2026-060187?ref=coios.me)

DOI

10.1136/tc-2026-060187

Type

Peer-reviewed article

Design

Prospective cohort using Korean National Health Insurance screening records, n=7,260,125 adults, three biennial screenings 2019-2023

Verdict

Refines prior evidence

Driver

[Smoking and vaping](https://www.coios.me/d-smoking-vaping/)