How is HbA1c testing interpreted in the diagnosis of diabetes mellitus?

Updated: Oct 23, 2019
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

Consequently, since 2010 the ADA has included an HbA1c level of 6.5% or higher as a criterion for diabetes diagnosis, with confirmation from repeat testing (unless clinical symptoms are present and the glucose level is >200 mg/dL). A target HbA1c level of less than 8% is supported for older patients (>60 y). Levels below 6% are associated with increased mortality. [111]


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