Speciality Medical Dialogues
    • facebook
    • twitter
    Login Register
    • facebook
    • twitter
    Login Register
    • Medical Dialogues
    • Education Dialogues
    • Business Dialogues
    • Medical Jobs
    • Medical Matrimony
    • MD Brand Connect
    Speciality Medical Dialogues
    • Editorial
    • News
        • Anesthesiology
        • Cancer
        • Cardiac Sciences
        • Critical Care
        • Dentistry
        • Dermatology
        • Diabetes and Endo
        • Diagnostics
        • ENT
        • Featured Research
        • Gastroenterology
        • Geriatrics
        • Medicine
        • Nephrology
        • Neurosciences
        • Nursing
        • Obs and Gynae
        • Ophthalmology
        • Orthopaedics
        • Paediatrics
        • Parmedics
        • Pharmacy
        • Psychiatry
        • Pulmonology
        • Radiology
        • Surgery
        • Urology
    • Practice Guidelines
        • Anesthesiology Guidelines
        • Cancer Guidelines
        • Cardiac Sciences Guidelines
        • Critical Care Guidelines
        • Dentistry Guidelines
        • Dermatology Guidelines
        • Diabetes and Endo Guidelines
        • Diagnostics Guidelines
        • ENT Guidelines
        • Featured Practice Guidelines
        • Gastroenterology Guidelines
        • Geriatrics Guidelines
        • Medicine Guidelines
        • Nephrology Guidelines
        • Neurosciences Guidelines
        • Obs and Gynae Guidelines
        • Ophthalmology Guidelines
        • Orthopaedics Guidelines
        • Paediatrics Guidelines
        • Psychiatry Guidelines
        • Pulmonology Guidelines
        • Radiology Guidelines
        • Surgery Guidelines
        • Urology Guidelines
    LoginRegister
    Speciality Medical Dialogues
    LoginRegister
    • Home
    • Editorial
    • News
      • Anesthesiology
      • Cancer
      • Cardiac Sciences
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endo
      • Diagnostics
      • ENT
      • Featured Research
      • Gastroenterology
      • Geriatrics
      • Medicine
      • Nephrology
      • Neurosciences
      • Nursing
      • Obs and Gynae
      • Ophthalmology
      • Orthopaedics
      • Paediatrics
      • Parmedics
      • Pharmacy
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Urology
    • Practice Guidelines
      • Anesthesiology Guidelines
      • Cancer Guidelines
      • Cardiac Sciences Guidelines
      • Critical Care Guidelines
      • Dentistry Guidelines
      • Dermatology Guidelines
      • Diabetes and Endo Guidelines
      • Diagnostics Guidelines
      • ENT Guidelines
      • Featured Practice Guidelines
      • Gastroenterology Guidelines
      • Geriatrics Guidelines
      • Medicine Guidelines
      • Nephrology Guidelines
      • Neurosciences Guidelines
      • Obs and Gynae Guidelines
      • Ophthalmology Guidelines
      • Orthopaedics Guidelines
      • Paediatrics Guidelines
      • Psychiatry Guidelines
      • Pulmonology Guidelines
      • Radiology Guidelines
      • Surgery Guidelines
      • Urology Guidelines
    • Home
    • News
    • Diabetes and Endo
    • Hemoglobin A1c test...

    Hemoglobin A1c test unreliable for diabetes diagnosis: Endocrine Society meeting

    Written by Medha Baranwal Baranwal Published On 2019-04-09T20:28:31+05:30  |  Updated On 9 April 2019 8:28 PM IST
    Hemoglobin A1c test unreliable for diabetes diagnosis: Endocrine Society meeting

    USA: Hemoglobin A1c also called A1c or glycated hemoglobin is a blood test used widely for the diagnosis of diabetes. However, a recent study presented at The Endocrine Society's annual meeting in New Orleans has found that the test is highly unreliable and has a tendency to underestimate the prevalence of the disease.


    The test evaluates the average amount of glucose in the blood over the last 2 to 3 months by measuring the percentage of glycated hemoglobin in the blood. Diabetic people undergo this test to determine whether one at increased risk of developing diabetes, also helps to diagnose diabetes and prediabetes; and monitor diabetes. The HbA1c test requires no testing preparation.


    A glucose tolerance test, also known as the oral glucose tolerance test, measures the body's response to sugar (glucose). In this test, a person’s blood is taken after an overnight fast, and then again two hours after they drink a sugary drink. The glucose tolerance test can be used to screen for type 2 diabetes.


    “Based on our findings, A1c should not be solely used to determine the prevalence of diabetes,” lead researcher Maria Mercedes Chang Villacreses, City of Hope’s Diabetes and Metabolism Research Institute in Duarte, California, said in a press release. “It should be used in conjunction with the oral glucose test for increased accuracy.”


    The research team analyzed data from 9,000 adults from the 2005-2014 National Health and Nutrition Examination Survey who did not have a diagnosis of diabetes.


    Also Read: Fluctuating HbA1c levels strong predictor of mortality in diabetes

    The authors found that:

    • When compared to the oral glucose tolerance test (OGTT), HbA1c will over-diagnose glucose tolerance by 42% and under-diagnose diabetes in 73% of adults. These individuals would miss the opportunity for early intervention.

    • For diagnosing diabetes, hemoglobin A1c had a sensitivity of 26.93% and specificity of 99.39%. For determining NGT, the test had a sensitivity of 84.91% and a specificity of 43.53%.

    • The accuracy of hemoglobin A1c varied across by races and ethnicity. It had the highest sensitivity for diagnosing diabetes in non-Hispanic blacks (41.25%), followed by Mexican Americans (30.71%) and non-Hispanic whites (21.11%).

    • The sensitivity of the test for diagnosing NGT was lowest in non-Hispanic blacks (71.79%), followed by Mexican Americans (86.69%) and non-Hispanic whites (89.40%).


    Also Read: ACP’s New HbA1c Targets for Glycemic Control in T2DM

    “Our results indicated that the prevalence of diabetes and normal glucose tolerance defined solely by A1c is highly unreliable, with a significant tendency for underestimation of the prevalence of diabetes and overestimation of normal glucose tolerance,” Chang Villacreses said.

    Blood testdiabetesdiabetes diagnosisglucose levelsGlucose Tolerance TestGlycated hemoglobinHbA1chemoglobin A1CMaria Mercedes Chang Villacresesoral glucose tolerance testThe Endocrine Society's annual meeting

    Disclaimer: This site is primarily intended for healthcare professionals. Any content/information on this website does not replace the advice of medical and/or health professionals and should not be construed as medical/diagnostic advice/endorsement or prescription. Use of this site is subject to our terms of use, privacy policy, advertisement policy. © 2020 Minerva Medical Treatment Pvt Ltd

    Medha Baranwal Baranwal
    Medha Baranwal Baranwal
      Show Full Article
      Next Story
      Similar Posts
      NO DATA FOUND

      • Email: info@medicaldialogues.in
      • Phone: 011 - 4372 0751

      Website Last Updated On : 12 Oct 2022 7:06 AM GMT
      Company
      • About Us
      • Contact Us
      • Our Team
      • Reach our Editor
      • Feedback
      • Submit Article
      Ads & Legal
      • Advertise
      • Advertise Policy
      • Terms and Conditions
      • Privacy Policy
      • Editorial Policy
      • Comments Policy
      • Disclamier
      Medical Dialogues is health news portal designed to update medical and healthcare professionals but does not limit/block other interested parties from accessing our general health content. The health content on Medical Dialogues and its subdomains is created and/or edited by our expert team, that includes doctors, healthcare researchers and scientific writers, who review all medical information to keep them in line with the latest evidence-based medical information and accepted health guidelines by established medical organisations of the world.

      Any content/information on this website does not replace the advice of medical and/or health professionals and should not be construed as medical/diagnostic advice/endorsement or prescription.Use of this site is subject to our terms of use, privacy policy, advertisement policy. You can check out disclaimers here. © 2025 Minerva Medical Treatment Pvt Ltd

      © 2025 - Medical Dialogues. All Rights Reserved.
      Powered By: Hocalwire
      X
      We use cookies for analytics, advertising and to improve our site. You agree to our use of cookies by continuing to use our site. To know more, see our Cookie Policy and Cookie Settings.Ok