Diagnostic specificity
quantifies the proportion of people who test negative among those who truly do not have the disease.
symbols, variables and units
TN: number of true negatives; FP: number of false positives; proportion is dimensionless.
applicable conditions and boundaries
Denominator is non-zero; performance depends on threshold, sample spectrum and reference standard.
formula source code
The following is a copyable LaTeX expression.
\mathrm{Specificity}=\frac{TN}{TN+FP}Reference and Extended Learning
CDC · Principles of Epidemiology ↗is organized according to model definition and assumptions. Please check actual conditions and original literature before engineering, research and clinical use.
specificityDiagnosis