• Int J Med Sci · Jan 2013

    Areca nut chewing and risk of atrial fibrillation in Taiwanese men: a nationwide ecological study.

    • Wei-Chung Tsai, Chung-Yu Chen, Hsuan-Fu Kuo, Ming-Tsang Wu, Wei-Hua Tang, Chih-Sheng Chu, Tsung-Hsien Lin, Ho-Ming Su, Po-Chao Hsu, Shih-Jie Jhuo, Ming-Yen Lin, Kun-Tai Lee, Sheng-Hsiung Sheu, and Wen-Ter Lai.
    • Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
    • Int J Med Sci. 2013 Jan 1; 10 (7): 804811804-11.

    BackgroundAreca nut chewing is associated with the risk of obesity, metabolic syndrome, hypertension, and cardiovascular mortality. Although a few case reports or case series have suggested the link between areca nut chewing and cardiac arrhythmias, information about the relationship between areca nut chewing and atrial fibrillation (AF) is lacking. Thus, a nationwide ecological study was conducted to investigate this.MethodsTwo national datasets, the nationwide population-based 2005 Taiwan National Health Insurance Research dataset (NHIRD) and the 2005 National Health Interview Survey (NHIS), were used for analyses. The clinical characteristics, inhabited area and medical histories for 375,360 eligible males were retrieved from the 2005 NHIRD. Health related behaviors including areca nut chewing, cigarette smoking, infrequent vegetable eating, and exercise habit were collected from the 2005 NHIS. The prevalence of AF and the areca nut chewing rate were evaluated by multivariate analysis.ResultsOf the 375,360 males (mean age, 44 years old), 1,326 (0.35%) were diagnosed with AF. The higher areca nut chewing rate, the higher prevalence rate of AF in Taiwan (Spearman correlation coefficient r=0.558, p=0.007). After adjusting for other covariates, the current areca nut chewing rate was found to be independently associated with the prevalence of AF. The adjusted odd ratio for areca nut chewing was 1.02 (95% CI=1.00-1.04) in risk of AF prevalence.ConclusionsAreca nut chewing is independently associated with the prevalence of AF in Taiwanese men. However, further exploration of the underlying mechanisms is necessary.

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