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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.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
Specific Findings
FindingResult SensitivitySpecificity
[ + ] Fasting Plasma Glucose + 0 - 56%96%
[ + ] HbA1c + 0 - 60%95%
[ + ] Elevated ESR + 0 - 68%94%
[ + ] Ulcer > 2cm + 0 - 56%92%
[ + ] Probe to Bone + 0 - 65%90%
Sensitive Findings
FindingResult SensitivitySpecificity
[ + ] MRI + 0 - 89%77%
Poorly Diagnostic Findings
FindingResult SensitivitySpecificity
[ + ] HbA1c + 0 - 80%82%
[ + ] Plain X-Ray + 0 - 51%78%

 

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