Pre-Diabetes Mellitus Criteria (ADA)
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Fasting plasma glucose is 100-125 mg/dL or 5.6-6.9 mmol/L (After minimum 8 hour fast) Yes No Unknown
Glucose level >=140 mg/dL (7.8 mmol/L) but <200 mg/dL (11.1 mmol/L) 2 hrs after glucose challenge (GTT) w/standardized 75 gram oral load of glucose Yes No Unknown
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Pre-Diabetes Mellitus Criteria (ADA)

The American Diabetes Association's ( ADA ) criteria for diagnosing "Impaired Glucose Tolerance" ( IGT ) or "Impaired Fasting Glucose ( IFG ) include:

  • Fasting plasma glucose is 100-125 mg/dL or 5.6-6.9 mmol/L (After minimum 8 hour fast) OR
  • Glucose level >=140 mg/dL (7.8 mmol/L) but <200 mg/dL (11.1 mmol/L) 2 hours after glucose challenge (GTT) with standardized 75 gram oral load of glucose

IGT or IFG, if left untreated, is high risk to develop into type 2 diabetes within 10 years.

References :

  • The Expert Committee on the Diagnosis and Classification of Diabetes Mellitus: Report of the Expert Committee on the Diagnosis and Classification of Diabetes Mellitus. Diabetes Care 1997;20:1183-1197.
  • The Expert Committee on the Diagnosis and Classification of Diabetes Mellitus: Follow-up report on the diagnosis of diabetes mellitus. Diabetes Care 2003;26:3160-3167.
  • Diagnosis and Classification of Diabetes Mellitus. American Diabetes Association (Position Statement). Diabetes Care 2006;29:S43-48.