Guo-Zhe Sun1, Liang Guo1, Xun-Zhang Wang2, Hong-Jie Song1, Zhao Li1, Jun Wang1, Ying-Xian Sun3. 1. Department of Cardiovascular Medicine, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China. 2. Heart Institute, Cedars Sinai Medical Center, Los Angeles 90048, CA, USA. 3. Department of Cardiovascular Medicine, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China. Electronic address: cmu1h_syx@126.com.
Abstract
OBJECTIVES: To evaluate the prevalence of atrial fibrillation (AF) in physical laborers in rural China and identify contributing risk factors. METHODS: A cross-sectional study of 11,956 permanent residents of Liaoning Province in rural China≥35y of age (primarily physical laborers) was conducted between January and August 2013 (response rate 85.3%). All participants completed a questionnaire and underwent a physical exam, echocardiography and electrocardiography. Blood samples were drawn for laboratory analyses, and AF was diagnosed on the basis of history and electrocardiograph findings. Risk factors for AF were evaluated with a stepwise logistic regression analysis. RESULTS: The prevalence of AF was 1.2% overall, but rose steeply with age (0.1% in those 35-44y of age, and 4.6% in those≥75y); there was no significant gender difference at any age. Independent risk factors for AF were age (odds ratio [OR] 1.89; P<0.001), diabetes (OR 2.07; P=0.001), history of myocardial infarction (OR 5.91; P<0.001), low left ventricular ejection fraction (OR 1.85; P=0.005), and low physical activity (OR 1.72; P=0.003), whereas obesity, hypertension, cholesterol and triglyceride levels, current smoking and drinking, left ventricular hypertrophy, and family history of AF were not significant contributors. CONCLUSIONS: Although the prevalence of AF in physical labors in rural China is low, age, diabetes, history of myocardial infarction, low left ventricular ejection fraction, and low physical activity are independent risk factors.
OBJECTIVES: To evaluate the prevalence of atrial fibrillation (AF) in physical laborers in rural China and identify contributing risk factors. METHODS: A cross-sectional study of 11,956 permanent residents of Liaoning Province in rural China≥35y of age (primarily physical laborers) was conducted between January and August 2013 (response rate 85.3%). All participants completed a questionnaire and underwent a physical exam, echocardiography and electrocardiography. Blood samples were drawn for laboratory analyses, and AF was diagnosed on the basis of history and electrocardiograph findings. Risk factors for AF were evaluated with a stepwise logistic regression analysis. RESULTS: The prevalence of AF was 1.2% overall, but rose steeply with age (0.1% in those 35-44y of age, and 4.6% in those≥75y); there was no significant gender difference at any age. Independent risk factors for AF were age (odds ratio [OR] 1.89; P<0.001), diabetes (OR 2.07; P=0.001), history of myocardial infarction (OR 5.91; P<0.001), low left ventricular ejection fraction (OR 1.85; P=0.005), and low physical activity (OR 1.72; P=0.003), whereas obesity, hypertension, cholesterol and triglyceride levels, current smoking and drinking, left ventricular hypertrophy, and family history of AF were not significant contributors. CONCLUSIONS: Although the prevalence of AF in physical labors in rural China is low, age, diabetes, history of myocardial infarction, low left ventricular ejection fraction, and low physical activity are independent risk factors.
Authors: Zhao Li; Xiaofan Guo; Hongkun Jiang; Guozhe Sun; Yingxian Sun; Maria Roselle Abraham Journal: Int J Environ Res Public Health Date: 2016-11-14 Impact factor: 3.390