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KMID : 0384320120330010051
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Korean Journal of Family Medicine
2012 Volume.33 No. 1 p.51 ~ p.58
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The Association between Serum Gamma- Glutamyltransferase within Normal Levels and Metabolic Syndrome in Office Workers: A 4-Year Follow-up Study
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Suh Byung-Seong
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Abstract
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Background: Serum gamma-glutamyltransferase (GGT) has been suggested as a predictor for development of the metabolic syndrome in non-Korean population, but studies in Korean population are scarce. Therefore, we examined the association between serum GGT levels and the incidence of the metabolic syndrome in Korean male offi ce workers.
Methods: The study population consisted of 32,692 office workers who underwent health checkups in both 2005 and 2009. A total of 17,583 with elevated GGT levels, the presence of metabolic syndrome, medication history at baseline, and female offi ce workers were excluded. Finally, 15,109 subjects were included in the fi nal analysis. We measured serum GGT levels and individual metabolic components.
Results: As a quartile of serum GGT increased, 4-year follow-up incidence of the metabolic syndrome increased. After adjustment for age, alcohol drinking status and smoking status in 2005, logistic regression analysis showed that the odds ratios (95% confi dence interval) for incident metabolic syndrome in 2009 compared to the lowest quartile and upper quartiles were 1.00 (reference), 1.57 (1.24-2.00), 2.73 (2.17-3.43), 3.78 (3.02-4.74), and statistically signifi cant (P < 0.001), respectively.
Conclusion: These results showed that the higher serum GGT predicted the future development of metabolic syndrome. In Korean male offi ce workers without the metabolic syndrome, the serum GGT levels despite normal levels were associated with an increased risk of incident metabolic syndrome.
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KEYWORD
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Gamma-Glutamyltransferase, Metabolic Syndrome, Incidence
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