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Classification Accuracy

Definition
AI-generated

Classification accuracy is the fraction of predictions that match the observed class labels among all predictions (correct classifications divided by total).

Synonyms

Why it matters in GWAS

Binary case–control benchmarks for predictors—polygenic scores, biomarkers, or clinical models—sometimes report accuracy alongside AUC, sensitivity, and specificity; reviewers often prefer AUC, calibration, and absolute risk metrics because accuracy is threshold- and prevalence-sensitive.

Example usage

"The baseline risk model reached 72% classification accuracy at the default threshold, but logistic calibration was poor in South Asian participants."

References

  • Steyerberg EW, et al. (2010). Assessing the performance of prediction models: a framework for traditional and novel measures. Epidemiology.

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