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Since the accuracy and precision (repeatability) of a test is relevant to any decision; how do I find (or phrase) search's to find data on this for commercial clinics? I used to work for an animal diagnostic company and they continually evaluated their accredited testing facilities; so I am sure that human diagnostic testing facilitates must have records and audits by somebody.

This a rephrase of Validity, Utility and Cost of Clinical Tests

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Sensitivity, Specificity, Positive Predictive Value, and Negative Predictive Value are used in medicine and public health to evaluate the accuracy of diagnosing patients with a certain disease or injury.

For instance, you might often come across journal articles which evaluate whether an ICD9 diagnosis of Severe Sepsis is accurate for a sample of patients by comparing the diagnosis with actual clinical charts and bio-markers.

This page offers an excellent general explanation as to what they mean and how they are used in research

  • Thank you for the link; but I really wanted data on the repeatability/accuracy of routine testing at a commercial lab. For instance Leukocytes, Cholesterol, etc ... I have a wife who is getting transfusions every 2 weeks (more or less) based upon a measure of her active red blood cells. The doctors order the transfusion based upon the threshold and I want to know things like how likely it is that the transfusion order is late or premature because of lab error. We all make mistakes. I am also close to thresholds for glucose and want to know the chances of a false positive due to lab error. – rrogers Aug 19 '15 at 14:07

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