The association of insulin resistance and carotid atherosclerosis with thigh and calf circumference in patients with type 2 diabetes

Jong Suk Park; Min Ho Cho; Chul Woo Ahn; Kyung Rae Kim; Kap Bum Huh

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The association of insulin resistance and carotid atherosclerosis with thigh and calf circumference in patients with type 2 diabetes

Authors: Jong Suk Park ; Min Ho Cho ; Chul Woo Ahn ; Kyung Rae Kim ; Kap Bum Huh

Citation: CARDIOVASCULAR DIABETOLOGY, Vol.11 : 62, 2012

Journal Title: CARDIOVASCULAR DIABETOLOGY

Issue Date: 2012

MeSH: Adiposity ; Adult ; Aged ; Anthropometry ; Biomarkers/blood ; Blood Glucose/metabolism ; Carotid Artery Diseases/diagnostic imaging ; Carotid Artery Diseases/epidemiology* ; Carotid Artery Diseases/physiopathology ; Carotid Intima-Media Thickness ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/blood ; Diabetes Mellitus, Type 2/epidemiology* ; Diabetes Mellitus, Type 2/pathology ; Diabetes Mellitus, Type 2/physiopathology ; Diabetic Angiopathies/diagnostic imaging ; Diabetic Angiopathies/epidemiology* ; Diabetic Angiopathies/physiopathology ; Female ; Humans ; Insulin/blood ; Insulin Resistance* ; Intra-Abdominal Fat/diagnostic imaging ; Leg/pathology* ; Linear Models ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Odds Ratio ; Republic of Korea/epidemiology ; Risk Assessment ; Risk Factors ; Thigh/pathology*

Keywords: Insulin resistance ; Intima media thickness ; Thigh circumference ; Calf circumference ; Type 2 diabetes mellitus

Abstract: BACKGROUND: The relationship between body composition parameters such as thigh and calf circumference and insulin resistance or atherosclerosis in type 2 diabetes is poorly understood. The aim of this study was to investigate the relationship between insulin resistance, atherosclerosis, and thigh and calf circumference in patients with type 2 diabetes.

METHODS: A total of 4,427 subjects with type 2 diabetes were enrolled in this study. Insulin sensitivity was assessed according the rate constant for plasma glucose disappearance (Kitt) determined via the short insulin tolerance test. Biochemical and anthropometric profiles were measured according to a standardized protocol. Visceral fat thickness and carotid intima media thickness (IMT) were measured by ultrasonography.

RESULTS: Insulin sensitivity index (Kitt) was significantly correlated with weight adjusted thigh and calf circumference. Thigh circumference was inversely associated with IMT in men and women and calf circumference was negatively correlated with IMT in women. Multiple stepwise regression analysis revealed that thigh circumference was independently correlated with insulin sensitivity index (Kitt) and IMT. Furthermore, in multivariate logistic regression analysis, thigh circumference was an independent determinant factor for carotid atherosclerosis in patients with type 2 diabetes even after adjusting for other cardiovascular risk factors.

CONCLUSIONS: Thigh and calf circumference were correlated with insulin resistance and carotid atherosclerosis, and thigh circumference was independently associated with insulin resistance and carotid atherosclerosis in patients with type 2 diabetes.