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Current controversies in the use of haemoglobin A1c

M J L Hare1, J E Shaw, P Z Zimmet

  • 1Baker IDI Heart and Diabetes Institute, Melbourne, Vic., Australia. matthew.hare@bakeridi.edu.au

Journal of Internal Medicine
|February 16, 2012
PubMed

Insights

The World Health Organization now recommends Haemoglobin A1c (HbA1c) for diagnosing diabetes. This review examines the evidence for and against using HbA1c testing in diabetes diagnosis.

Area of Science:

  • Clinical diagnostics
  • Endocrinology
  • Public health

Background:

  • The World Health Organization (WHO) has incorporated Haemoglobin A1c (HbA1c) into its diagnostic criteria for diabetes.
  • Significant ongoing debate exists regarding the advantages and disadvantages of using HbA1c for diabetes diagnosis.
  • There is a lack of consensus on whether this diagnostic criterion change clarifies or complicates the global approach to diabetes diagnosis.

Purpose of the Study:

  • To provide a comprehensive overview of the current issues surrounding HbA1c measurement and reporting.
  • To critically evaluate the evidence supporting and opposing the use of HbA1c in diabetes diagnosis.
  • To address the ongoing debate on the utility of HbA1c in defining and diagnosing diabetes.

Main Methods:

  • Literature review of current research on HbA1c measurement and reporting.
  • Analysis of evidence supporting HbA1c use in diabetes diagnosis.
  • Analysis of evidence against HbA1c use in diabetes diagnosis.

Main Results:

  • Discussion of the methodologies and standardization challenges in HbA1c testing.
  • Presentation of data on the diagnostic accuracy and clinical utility of HbA1c.
  • Exploration of the potential impact of HbA1c adoption on patient management and public health.

Conclusions:

  • HbA1c offers a convenient method for diabetes diagnosis but requires careful interpretation.
  • Standardization and understanding of pre-analytical factors are crucial for reliable HbA1c results.
  • Further research is needed to fully elucidate the long-term implications of HbA1c-based diabetes diagnosis.

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