The Impact of Metabolic Syndrome Defined by IDF or Revised NCEP on Glycemic control in Malaysians with Type 2 Diabetes
Abstract BackgroundChronic complication of Type 2 diabetes mellitus such as macrovascular disease is amplified with the increase in the number of the metabolic syndrome (MeS) risk factors. Specific criteria for diagnosis of metabolic syndrome are essential to help in glycemic control and reduce cardiovascular morbidity and mortality in diabetic patients with metabolic syndrome.Methods The study involved 485 Type 2 DM patients who are receiving treatment at the University Kebangsaan Malaysia Medical Center (UKMMC), Kuala Lumpur, Malaysia. Metabolic syndrome among the Type 2 DM patients was diagnosed based on IDF and NCEP-R criteria. The C-peptide and glycated hemoglobin (HbA1c) levels were determined by an automated quantitative immunoassay analyzer and high-performance liquid chromatography respectively. The metabolic syndrome factors, glucose, triglyceride and HDL cholesterol were measured by spectrophotometerResultsApplication of IDF and NCEP-R criteria respectively resulted in 73% and 85% of Type 2 DM subjects being diagnosed with metabolic syndrome. The concordance of these criteria in diagnosing metabolic syndrome among Type 2 DM was low (kappa=0.33, P<0.001). Both IDF and NCEP-R criteria indicated that Type 2 DM with five criteria of metabolic syndrome had higher insulin resistance (P=2.1×10-13, P=1.4×10-11), C-peptide (P=1.21×10-13; 4.1×10-11), blood glucose (P=0.01; 0.021) and HbA1c (P=0.039; 0.018) than those Type 2 DM without metabolic syndrome respectively.ConclusionHowever, there is a low concordance between IDF and NCEP-R criteria in the diagnosis of metabolic syndrome among Type 2 DM, both criteria showed that type 2 DM with five criteria of metabolic syndrome had higher insulin resistance, blood glucose and HbA1c.