American Diabetes Association
3_Supp_DM_Alcohol_AF_DC_R1_Final_20210123.pdf (259.62 kB)

Alcohol Abstinence and the Risk of Atrial Fibrillation in Patients With Newly Diagnosed Type 2 Diabetes Mellitus: A Nationwide Population-Based Study

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posted on 2021-04-19, 19:56 authored by You-jung Choi, Kyung-Do Han, Eue-Keun Choi, Jin-Hyeung Jung, So-Ryoung Lee, Seil Oh, Gregory Y. H. Lip
Objectives: To investigate the effects of alcohol abstinence in preventing new-onset atrial fibrillation (AF) in patients with type 2 diabetes mellitus (T2DM).

Research Design and Methods: A total of 1,112,682 patients newly diagnosed with T2DM between 2011–2014, were identified from the Korean National Health Insurance Service database. After excluding a previous history of AF, 175,100 subjects were included. The primary outcome was new-onset AF.

Results: During a mean follow-up of 4.0 years, AF occurred in 4,174 patients. Heavy alcohol consumption (alcohol intake ≥40 g/day) before a T2DM diagnosis had a higher risk of AF (adjusted hazard ratio [aHR] 1.22, 95% confidence interval [CI] 1.06–1.41) compared to no alcohol consumption. After a T2DM diagnosis, moderate-to-heavy alcohol consumption (alcohol intake ≥20 g/day) who abstained from alcohol had a lower risk of AF (aHR 0.81, 95% CI 0.68–0.97) than did constant drinkers. Alcohol abstinence showed consistent trends toward lower incident AF in all subgroups and was statistically significant in men (aHR 0.80, 95% CI 0.67–0.96), those aged >65 years (aHR 0.69, 95% CI 0.52–0.91), those with CHA2DS2-VASc score <3 points (aHR 0.71, 95% CI 0.59–0.86), non-insulin users (aHR 0.77, 95% CI 0.63–0.94), and body mass index < 25 mg/k2 (aHR 0.68, 95% CI 0.53–0.88).

Conclusions: In patients with newly diagnosed T2DM, alcohol abstinence was associated with a low risk of AF development. Lifestyle modifications, such as alcohol abstinence, in patients newly diagnosed with T2DM should be recommended to reduce the risk of AF.


This work was supported by the Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, Republic of Korea, the Ministry of Food and Drug Safety) (Project Number: 202013B14), and by the Korea National Research Foundation funded by the Ministry of Education, Science and Technology (grant 2020R1F1A106740).