Korean J Fam Med 2017; 38(6): 346-351  https://doi.org/10.4082/kjfm.2017.38.6.346
Relationship between Coffee Consumption and Metabolic Syndrome in Korean Adults: Data from the 2013–2014 Korea National Health and Nutrition Examination Survey
Hyekyung Shin, John A. Linton*, Yujin Kwon, Yohan Jung, Bitna Oh, Sinae Oh
Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
John A. Linton Tel: +82-2-2228-2330, Fax: +82-2-312-2846, E-mail: YOHAN@yuhs.ac
Received: April 20, 2016; Revised: September 2, 2016; Accepted: September 2, 2016; Published online: November 20, 2017.
© Korean Academy of Family Medicine. All rights reserved.

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Abstract
Background: The gradually increasing demand for coffee worldwide has prompted increased interest in the relationship between coffee and health issues as well as a need for research on metabolic syndrome in adults.
Methods: Data from 3,321 subjects (1,268 men and 2,053 women) enrolled in the 2013–2014 Korean National Health and Nutrition Examination Survey were analyzed. The subjects were divided into three groups according to their daily coffee consumption. The odds ratios (ORs) and 95% confidence intervals (95% CIs) for metabolic syndrome in the coffee-drinking groups were calculated using multiple logistic regression analysis by adjusting for confounding variables.
Results: The prevalence of metabolic syndrome was 15.5%, 10.7%, and 9.7% in men and 3.0%, 7.1%, and 6.5% in women according to their coffee consumption (less than one, one or two, or more than three cups of coffee per day), respectively. Compared with the non-coffee consumption group, the ORs (95% CIs) for metabolic syndrome in the group that consumed more than three cups of coffee was 0.638 (0.328–1.244) for men and 1.344 (0.627–2.881) for women after adjusting for age, body mass index, household income, education, smoking, alcohol, regular exercise, and daily caloric intake.
Conclusion: The OR of metabolic syndrome was not statistically significant in both men and women.
Keywords: Coffee; Metabolic Syndrome; Waist Circumference; Korea


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