The association of dyslipidemia and obesity with glycated hemoglobin

Background: Dyslipidemia and obesity are the most common complex metabolic disorders taking the highest toll of health resources globally by its increasing incidences. This consequently leads to type 2 diabetes mellitus (T2DM) and cardiovascular disorders (CVDs) with variable reports about the role of metabolic factors on glycemic control. The current study is designed to determine the association of dyslipidemia and obesity with glycated hemoglobin (HbA1c) in T2DM and non-diabetic subjects. Methods: The present study was carried out in 931 subjects from urban Western India including 430 diabetic and 501 non-diabetic subjects with detailed anthropometric parameters. All subjects were investigated for HbA1c and lipid parameters like TC, TG, HDL-C, LDL-C and non-HDL-C. Results: Dyslipidemia, central- and peripheral- obesity were observed (50.27 %; 75 % and 59.83 %) in all the study subjects respectively. Additionally, hyper-non-HDL-C was detected in 23.49 % and 22.56 % in T2DM and non-diabetic subjects. Significant linear associations of hyper-TC, hyper-LDL-C and hyper-non-HDL-C were observed with HbA1c in T2DM and non-diabetic control subjects respectively. Centrally- and peripherally- obese dyslipidemic subjects also showed a significant association with HbA1c in T2DM and control subjects respectively. Conclusion: This study demonstrates the high prevalence of dyslipidemia and obesity in all subjects irrespective of their disease status in a Western Indian population. The dyslipidemic obese subjects had significant linear association with HbA1c in T2DM subjects.