The role of glycated hemoglobin in the diagnosis of prediabetes and diabetes mellitus in young women with polycystic ovary syndrome

Author:

Melo Raissa Holanda12,Pontes Ana Gabriela2,Delmanto Lucia Regina Marques Gomes2,Bueloni‐Dias Flavia Neves2,Vespoli Heloisa De Luca12,Nahas Eliana Aguiar Petri12ORCID

Affiliation:

1. Graduate Program in Obstetrics and Gynecology, Botucatu Medical School Sao Paulo State University—UNESP Botucatu Sao Paulo Brazil

2. Department of Obstetrics and Gynecology, Botucatu Medical School Sao Paulo State University—UNESP Botucatu Sao Paulo Brazil

Abstract

AbstractObjectiveTo compare glycated hemoglobin (HbA1c) and the oral glucose tolerance test (OGTT) for the diagnosis of prediabetes and diabetes in young women with polycystic ovary syndrome (PCOS).Patients and DesignThis cross‐sectional study included 154 women aged 20–40 years with a diagnosis of PCOS, who were screened for prediabetes and diabetes by the OGTT and HbA1c. Women with diabetes, hyperprolactinemia, thyroid or adrenal diseases, and anemia and users of hormonal contraception or corticosteroids were excluded.MeasurementsClinical, biochemical and ultrasound data were collected from the electronic medical records. The women were classified as having normal glucose metabolism, prediabetes, or diabetes based on the diagnostic tests. Sensitivity and specificity were calculated and the Kappa method was used to assess agreement between the two methods.ResultsAccording to the OGTT and HbA1c values, 79.2% and 76% of the women were within the normal range, respectively, 16.8% and 19.5% had prediabetes, and 4% and 4.5% had diabetes (p > .05). The Kappa coefficient of 0.41 (95% confidence interval: 0.24–0.58) indicated medium agreement between methods. Considering the OGTT as the gold standard, the specificity of HbA1c was 89.5% and sensitivity was 85.7% in the diagnosis of prediabetes and 100% and 66.7%, respectively, in the diagnosis of diabetes.ConclusionThe HbA1c, when compared to the OGTT, showed high sensitivity and specificity in the diagnosis of prediabetes in young women with PCOS.

Publisher

Wiley

Subject

Endocrinology, Diabetes and Metabolism,Endocrinology

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