The diagnosis that never was.

Area of Science:

• Endocrinology
• Metabolic Disorders
• Clinical Diagnostics

Background:

• The term 'pre-diabetes' is increasingly used in common language.
• Individuals at risk for type 2 diabetes are often categorized as having 'pre-diabetes' or 'borderline diabetes'.
• This reflects a growing awareness of intermediate hyperglycemia states.

Purpose of the Study:

• To define the diagnostic criteria for pre-diabetes.
• To clarify the blood glucose level thresholds that indicate pre-diabetes.
• To inform healthcare professionals and the public about pre-diabetes classification.

Main Methods:

• Review of diagnostic categories established by the American Diabetes Association (ADA) in 2010.
• Identification of specific blood glucose and HbA1c level ranges for pre-diabetes diagnosis.
• Analysis of ADA's criteria for fasting glucose and glycated hemoglobin (HbA1c).

Main Results:

• Pre-diabetes is defined as blood glucose levels above normal but below diabetic thresholds.
• ADA criteria for pre-diabetes include: Fasting glucose of 5.5 to 6.9 mmol/l.
• ADA criteria for pre-diabetes include: HbA1c levels of 42 to 47 mmol/mol (6% to 6.5%).

Conclusions:

• The ADA has established clear diagnostic criteria for pre-diabetes.
• These criteria help identify individuals at increased risk for developing type 2 diabetes.
• Understanding these diagnostic ranges is crucial for early intervention and management.