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Professional Technical IVT

concordance rate

Statistical measure of agreement between different diagnostic methods or observers in breast cancer assessment.

Full Definition

Concordance rate represents the percentage of cases where two or more diagnostic methods, tests, or observers reach the same conclusion in breast cancer evaluation. This metric is crucial for validating diagnostic accuracy and ensuring reliable patient care. Common concordance assessments include agreement between imaging findings and pathology results, inter-observer variability in pathology interpretation, or correlation between different biomarker testing methods. High concordance rates indicate reliable diagnostic processes, while low rates may signal need for additional testing or review.

Usage

Usage note: Always specify what is being compared (e.g., imaging vs pathology, observer agreement).

In Context

  • "The concordance rate between imaging and pathology was 92% for lesions classified as suspicious." — Quality assurance report
  • "Inter-observer concordance rate for HER2 scoring improved significantly after standardized training." — Laboratory validation study

Also known as

agreement rate correlation coefficient

Contrasted with

discordance rate disagreement rate

Don't confuse with

confidence interval correlation

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