Korean J Fam Med.  2012 Jan;33(1):51-58. 10.4082/kjfm.2012.33.1.51.

The Association between Serum Gamma-Glutamyltransferase within Normal Levels and Metabolic Syndrome in Office Workers: A 4-Year Follow-up Study

• Suh BS

• KMID: 2235517
• DOI: http://doi.org/10.4082/kjfm.2012.33.1.51

Abstract

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 office 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 office workers were excluded. Finally, 15,109 subjects were included in the final 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% confidence 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 significant (P < 0.001), respectively.
CONCLUSION
These results showed that the higher serum GGT predicted the future development of metabolic syndrome. In Korean male office workers without the metabolic syndrome, the serum GGT levels despite normal levels were associated with an increased risk of incident metabolic syndrome.

Keyword

Gamma-Glutamyltransferase; Metabolic Syndrome; Incidence

MeSH Terms

Alcohol Drinking
Female
Follow-Up Studies
gamma-Glutamyltransferase
Humans
Incidence
Logistic Models
Male
Odds Ratio
Smoke
Smoking
Smoke
gamma-Glutamyltransferase