J Korean Diabetes Assoc.
2005 Sep;29(5):432-439.
Increasing Trends of Metabolic Syndrome in Korea -Based on Korean National Health and Nutrition Examination Surveys-
- Affiliations
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- 1Seoul National University College of Medicine, Department of Internal Medicine, Seoul, Korea.
- 2Seoul National University, School of Public Health and Institute of Health and Environment, Seoul, Korea.
- 3Seoul National University Medical Research Center, The Institute of Endocrinology, Nutrition and Metabolism, Seoul, Korea.
Abstract
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BACKGOUND: The number of individuals with metabolic syndrome is increasing in Asian as well as in Western countries. The aim of this study was to compare the prevalence and patterns of metabolic syndrome as determined by the 1998 and 2001 Korean National Health and Nutrition Examination Surveys(KNHANES).
METHODS
A total of 6,907 and 4,536 Koreans aged over 20 years participated in the KNHANES in 1998 and 2001, respectively. A stratified multistage probability sampling design and weighting adjustments were made to obtain a representative Korean population. The working definition of the National Cholesterol Education Program-Adult Treatment Panel III was used to define metabolic syndrome. The International Obesity Task Force criteria for the Asian-Pacific population were used to determine waist circumference criteria.
RESULTS
The age-adjusted prevalence of metabolic syndrome significantly increased from 22.5 to 24.1% between 1998 and 2001(P<0.01). Of the five components composing metabolic syndrome, low HDL-cholesterolemia showed the highest increase(32.6%) over this period, followed by hypertriglyceridemia and abdominal obesity, with 15.9% and 4.3% increases, respectively. In contrast, the number of subjects with high blood pressure or elevated fasting glucose levels were reduced(37.1-->33.1% and 18.9-->15.4%, respectively, both P<0.01).
CONCLUSION
Dyslipidemia and abdominal obesity were primarily responsible for the increase in metabolic syndrome in Korea over the period 1998 to 2001. Changes to diet patterns and a reduction in physical activity are likely to have contributed to the rapid increase in metabolic syndrome in Korea; therefore, national strategies will be needed to counteract this increase.
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