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Exp Clin Endocrinol Diabetes ; 122(9): 553-7, 2014 Oct.
Article in English | MEDLINE | ID: mdl-24918529

ABSTRACT

BACKGROUND: In non-PCOS patients the concentration of glycated hemoglobin (HbA1C) has been employed to identify individuals at higher risk for impaired glucose tolerance (IGT) and diabetes mellitus. A few studies have examined the role of HbA1C in PCOS patients and current results are controversial. AIM: To compare the strength of the association between glycated hemoglobin and other predictors of cardiovascular risk in polycystic ovary syndrome (PCOS). METHODS: This cross-sectional study enrolled 197 PCOS patients and 72 non-PCOS women. Transvaginal ultrasound, biochemical and hormone measurement were performed. Glycated hemoglobin (HbA1C) was correlated with other variables related to dysmetabolic/vascular diseases. RESULTS: The HbA1C levels were 6.0±1.4% and 4.9±0.4% in PCOS patients and non-PCOS controls, respectively (p<0.001). The HbA1C levels were≥5.7% in 46.4% of PCOS and in none of the control subjects (OR=90.8). HbA1C was well-correlated with several anthropometric, metabolic and endocrine parameters. Stepwise multiple regression including HbA1C and other known predictors of cardiovascular risk resulted in a significant model in which body mass index (BMI) and free testosterone exhibited the best correlation with HbA1C (adjusted R(2)=0.530; F=39.8; p<0.001). CONCLUSION: HbA1C was elevated and correlated with anthropometric, biochemical and endocrine variables of metabolic/vascular disease risks in PCOS patients. Combined HbA1C, BMI and free testosterone levels provided a significant model with potential use to evaluate metabolic/vascular disease in PCOS patients.


Subject(s)
Glycated Hemoglobin/metabolism , Polycystic Ovary Syndrome/blood , Polycystic Ovary Syndrome/complications , Vascular Diseases/blood , Vascular Diseases/etiology , Adult , Body Mass Index , Cross-Over Studies , Female , Humans , Risk Factors , Testosterone/blood
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