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AIM: To investigate the association between liver markers and the risk of type 2 diabetes(T2DM) and impaired fasting glucose(IFG).METHODS: A total of 8863 participants(3408 men and 5455 women) over 30 years of age were analyzed from the fifth Korean National Health and Nutrition Examination Survey(2010-2011). The associations of serum liver markers such as aspartate aminotransferase(AST), alanine aminotransferase(ALT), AST/ALT, and gamma-glutamyltransferase(GGT) with T2 DM and IFG were analyzed using logistic regression models. Participants were divided into sex-specific quartiles on the basis of liver markers.RESULTS: The prevalence of T2 DM and IFG were 11.3% and 18.3%. Increasing quartiles of ALT and GGT were positively and AST/ALT were negatively correlated with T2 DM and IFG. Analysis of the liver marker combinations showed that if any two or more markers were in the highest risk quartile, the risks of both T2 DM and IFG increased significantly. The risk was greatest when the highest ALT and GGT and lowest AST/ALT quartile were combined, with the riskof T2 DM at 3.21(95%CI: 1.829-5.622, P < 0.001) in men and 4.60(95%CI: 3.217-6.582, P < 0.001) in women. Men and women with the highest AST and ALT and lowest AST/ALT quartile had a 1.99 and 2.40 times increased risk of IFG.CONCLUSION: Higher levels of GGT and ALT and lower AST/ALT within the physiological range are independent, additive risk factors of T2 DM and IFG.
AIM: To investigate the association between liver markers and the risk of type 2 diabetes (T2DM) and impaired fasting glucose (IFG). METHODS: A total of 8863 participants (3408 men and 5455 women) over 30 years of age were analyzed from the The Association of serum liver markers such as aspartate aminotransferase (AST), alanine aminotransferase (ALT), AST / ALT, and gamma-glutamyltransferase (GGT) with T2 DM and IFG were analyzed using logistic regression models. Participants were divided into sex-specific quartiles on the basis of liver markers .RESULTS: The prevalence of T2 DM and IFG were 11.3% and 18.3%. Increasing quartiles of ALT and GGT were positively and AST / ALT were negatively correlated with T2 DM and IFG. Analysis of the liver marker combinations showed that if any two or more markers were in the highest risk quartile, the risks of both T2 DM and IFG increased significantly. The risk was greatest when the high est ALT and GGT and lowest AST / ALT quartile were combined with the risk of T2 DM at 3.21 (95% CI: 1.829-5.622, P <0.001) in men and 4.60 (95% CI: 3.217-6.582, in women. Men and women with the highest AST and ALT and lowest AST / ALT quartile had a 1.99 and 2.40 times increased risk of IFG.CONCLUSION: Higher levels of GGT and ALT and lower AST / ALT within the physiological range are independent, additive risk factors of T2 DM and IFG.