Simultaneous Comparison of Sensitivities and Specificities of Two Diagnostic Tests Adjusting for Discrete Covariates
Metadatos
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MDPI
Materia
Binary diagnostic test Sensitivity Specificity Simultaneous comparison
Fecha
2021-08-24Referencia bibliográfica
Roldán-Nofuentes, J.A. Simultaneous Comparison of Sensitivities and Specificities of Two Diagnostic Tests Adjusting for Discrete Covariates. Mathematics 2021, 9, 2029. [https://doi.org/10.3390/math9172029]
Resumen
Adjusting for covariates is important in the study of the performance of diagnostic tests.
In this manuscript, the simultaneous comparison of the sensitivities and specificities of two binary
diagnostic tests is studied when discrete covariates are observed in all of the individuals in the
sample. Four methods are presented to simultaneously compare the two sensitivities and the two
specificities: a global hypothesis test and three other methods based on individual comparisons.
The maximum likelihood method was applied to adjust the overall estimators of sensitivities and
specificities. Simulation experiments were carried out to study the asymptotic behaviors of the four
proposed methods when the covariate is binary, giving general rules of application. The results were
applied to a real example.