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Diabetes Mellitus: Sensitivity and Specificity

Introduction:

See also Insulin Resistance. The gold standard for diabetes is the Oral Glucose Tolerance Test (OGTT), where blood glucose levels are measured at specified time intervals after a specified oral glucose load.

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Tags: Endocrine Tag this Diagnosis.

The sensitivity and specificity of findings for Diabetes Mellitus are listed below. See the left navigation bar to change the display.

Specific Findings

Finding SensitivitySpecificity Comments, Study
Fasting Plasma Glucose Edit 56%96%

>110mg/dl

Study: Diabet Med. 2007 Apr;24(4):333-43. PMID: 17367307

HbA1c
Duplicate Edit
60%95%

>=6.2%

Study: Diabet Med. 2007 Apr;24(4):333-43. PMID: 17367307

Elevated ESR Edit 68%94%

> 70mm/hr.

population: diabetics

Study: JAMA. 2008;299(7):806-813. http://jama.ama-assn.org/cgi/content/full/299/7/806

Ulcer > 2cm Edit 56%92%

population: diabetics

Study: JAMA. 2008;299(7):806-813. http://jama.ama-assn.org/cgi/content/full/299/7/806

Probe to Bone Edit 65%90%

population: diabetics

Study: JAMA. 2008;299(7):806-813. http://jama.ama-assn.org/cgi/content/full/299/7/806

Sensitive Findings

Finding SensitivitySpecificity Comments, Study
MRI Edit 89%77%

population: diabetics

Study: JAMA. 2008;299(7):806-813. http://jama.ama-assn.org/cgi/content/full/299/7/806

Poorly Diagnostic Findings

Finding SensitivitySpecificity Comments, Study
HbA1c
Duplicate Edit
80%82%

>=6.1%

Study: Diabet Med. 2007 Apr;24(4):333-43. PMID: 17367307

Plain X-Ray Edit 51%78%

population: diabetics

Study: JAMA. 2008;299(7):806-813. http://jama.ama-assn.org/cgi/content/full/299/7/806