Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study

BackgroundHeart failure (HF) is one of the most common initial manifestations of cardiovascular disease in patients with type 2 diabetes. Although smoking is an independent risk factor for HF, there is a lack of data for the incidence of HF according to changes in smoking beh...

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Main Authors: Jung Eun Yoo, Su-Min Jeong, Kyu Na Lee, Heesun Lee, Ji Won Yoon, Kyungdo Han, Dong Wook Shin
Format: Article
Language:English
Published: JMIR Publications 2024-01-01
Series:JMIR Public Health and Surveillance
Online Access:https://publichealth.jmir.org/2024/1/e46450
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author Jung Eun Yoo
Su-Min Jeong
Kyu Na Lee
Heesun Lee
Ji Won Yoon
Kyungdo Han
Dong Wook Shin
author_facet Jung Eun Yoo
Su-Min Jeong
Kyu Na Lee
Heesun Lee
Ji Won Yoon
Kyungdo Han
Dong Wook Shin
author_sort Jung Eun Yoo
collection DOAJ
description BackgroundHeart failure (HF) is one of the most common initial manifestations of cardiovascular disease in patients with type 2 diabetes. Although smoking is an independent risk factor for HF, there is a lack of data for the incidence of HF according to changes in smoking behaviors in patients with type 2 diabetes. ObjectiveWe aimed to examine the association between interval changes in smoking behavior and the risk of HF among patients with type 2 diabetes. MethodsWe conducted a retrospective cohort study using the National Health Insurance Service database. We identified 365,352 current smokers with type 2 diabetes who had 2 consecutive health screenings (2009-2012) and followed them until December 31, 2018, for the incident HF. Based on smoking behavior changes between 2 consecutive health screenings, participants were categorized into quitter, reducer I (≥50% reduction) and II (<50% reduction), sustainer (reference group), and increaser groups. ResultsDuring a median follow-up of 5.1 (IQR 4.0-6.1) years, there were 13,879 HF cases (7.8 per 1000 person-years). Compared to sustainers, smoking cessation was associated with lower risks of HF (adjusted hazard ratio [aHR] 0.90, 95% CI0.86-0.95), whereas increasers showed higher risks of HF than sustainers; heavy smokers who increased their level of smoking had a higher risk of HF (aHR 1.13, 95% CI 1.04-1.24). In the case of reducers, the risk of HF was not reduced but rather increased slightly (reducer I: aHR 1.14, 95% CI 1.08-1.21; reducer II: aHR 1.03, 95% CI 0.98-1.09). Consistent results were noted for subgroup analyses including type 2 diabetes severity, age, and sex. ConclusionsSmoking cessation was associated with a lower risk of HF among patients with type 2 diabetes, while increasing smoking amount was associated with a higher risk for HF than in those sustaining their smoking amount. There was no benefit from reduction in smoking amount.
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spelling doaj.art-3a6666e5991e488c8e6803d60413dd592024-01-10T15:45:35ZengJMIR PublicationsJMIR Public Health and Surveillance2369-29602024-01-0110e4645010.2196/46450Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort StudyJung Eun Yoohttps://orcid.org/0000-0001-8344-6291Su-Min Jeonghttps://orcid.org/0000-0001-9588-1928Kyu Na Leehttps://orcid.org/0000-0003-3011-8010Heesun Leehttps://orcid.org/0000-0003-4037-3955Ji Won Yoonhttps://orcid.org/0000-0001-9003-0614Kyungdo Hanhttps://orcid.org/0000-0002-6096-1263Dong Wook Shinhttps://orcid.org/0000-0001-8128-8920 BackgroundHeart failure (HF) is one of the most common initial manifestations of cardiovascular disease in patients with type 2 diabetes. Although smoking is an independent risk factor for HF, there is a lack of data for the incidence of HF according to changes in smoking behaviors in patients with type 2 diabetes. ObjectiveWe aimed to examine the association between interval changes in smoking behavior and the risk of HF among patients with type 2 diabetes. MethodsWe conducted a retrospective cohort study using the National Health Insurance Service database. We identified 365,352 current smokers with type 2 diabetes who had 2 consecutive health screenings (2009-2012) and followed them until December 31, 2018, for the incident HF. Based on smoking behavior changes between 2 consecutive health screenings, participants were categorized into quitter, reducer I (≥50% reduction) and II (<50% reduction), sustainer (reference group), and increaser groups. ResultsDuring a median follow-up of 5.1 (IQR 4.0-6.1) years, there were 13,879 HF cases (7.8 per 1000 person-years). Compared to sustainers, smoking cessation was associated with lower risks of HF (adjusted hazard ratio [aHR] 0.90, 95% CI0.86-0.95), whereas increasers showed higher risks of HF than sustainers; heavy smokers who increased their level of smoking had a higher risk of HF (aHR 1.13, 95% CI 1.04-1.24). In the case of reducers, the risk of HF was not reduced but rather increased slightly (reducer I: aHR 1.14, 95% CI 1.08-1.21; reducer II: aHR 1.03, 95% CI 0.98-1.09). Consistent results were noted for subgroup analyses including type 2 diabetes severity, age, and sex. ConclusionsSmoking cessation was associated with a lower risk of HF among patients with type 2 diabetes, while increasing smoking amount was associated with a higher risk for HF than in those sustaining their smoking amount. There was no benefit from reduction in smoking amount.https://publichealth.jmir.org/2024/1/e46450
spellingShingle Jung Eun Yoo
Su-Min Jeong
Kyu Na Lee
Heesun Lee
Ji Won Yoon
Kyungdo Han
Dong Wook Shin
Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
JMIR Public Health and Surveillance
title Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
title_full Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
title_fullStr Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
title_full_unstemmed Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
title_short Smoking Behavior Change and the Risk of Heart Failure in Patients With Type 2 Diabetes: Nationwide Retrospective Cohort Study
title_sort smoking behavior change and the risk of heart failure in patients with type 2 diabetes nationwide retrospective cohort study
url https://publichealth.jmir.org/2024/1/e46450
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