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Published on: February 26, 2013
Prevalence of atrial fibrillation in China and its risk factors
Ying Li1, Yang Feng Wu, Ke Ping Chen
1State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
Insights
The prevalence of atrial fibrillation (AF) in China is 0.77%. Key risk factors like obesity and alcohol consumption are linked to increased AF risk, mirroring findings from Western countries.
Area of Science:
- Cardiology
- Epidemiology
- Public Health
Background:
- Atrial fibrillation (AF) is a prevalent cardiac arrhythmia with significant health implications.
- Understanding AF prevalence and risk factors in diverse populations like China is crucial for public health strategies.
Purpose of the Study:
- To determine the prevalence of atrial fibrillation (AF) in a large, representative Chinese population.
- To investigate the association between established AF risk factors and the condition within China.
Main Methods:
- A cross-sectional survey involving 19,363 participants aged 35 years and older from urban and rural China.
- Data collection included questionnaires, physical examinations, blood tests, and echocardiography for diagnosed AF cases.
Main Results:
- The age-standardized prevalence of AF was 0.77% across all participants.
- AF prevalence increased significantly with age, reaching 1.83% in individuals aged 60 years and older.
- Myocardial infarction, left ventricular hypertrophy, obesity, and alcohol consumption were identified as significant risk factors for AF.
Conclusions:
- The study establishes the prevalence of AF in China at 0.77%, with an estimated 5.26 million cases in individuals aged 35 years and older.
- Risk factors for AF identified in Western populations are also prevalent and associated with AF in China.
- These findings highlight the need for targeted prevention and management strategies for AF in China.
Objective:
To study the prevalence of atrial fibrillation (AF) and the relation with its risk factors in China.
Methods:
A total of 19 363 participants (8635 males and 10 728 females) aged ⋝35 years in geographically dispersed urban and rural regions of China were included in this cross-sectional survey. All participants received questionnaire, physical and blood examination. Echocardiography were performed for AF patients found in the survey.
Results:
Of the 19 363 participants, 199 were diagnosed with AF. The estimated age-standardized prevalence of AF was 0.78% in men and 0.76% in women. The prevalence of AF in participants aged <60 years was 0.41% in men and 0.43% in women, and was 1.83% in both men and women aged ⋝60 years. About 19.0% of males and 30.9% of females with AF were diagnosed with valve disease. Age- and sex-adjusted multivariable logistic regression analysis revealed that myocardial infarction, left ventricular hypertrophy (LVH), obesity, and alcohol consumption were associated with a increased risk of AF(P<0.05).
Conclusion:
The age standardized prevalence of AF is 0.77% in the participants enrolled in the present study. The number of AF cases aged ⋝35 years is 5.26 million according to 2010 Chinese Census. Most risk factors for AF, identified mainly in Western countries, are also detected in China.
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