[ROC curve]

Abstract

The ROC curve is a statistical tool used to evaluate the discriminative capacity of a dichotomous diagnostic test. These are curves in which sensitivity is presented as a function of false positives (complementary to specificity) for different cut-off points. They are useful for choosing the most appropriate cut-off point for a test, knowing its overall performance and comparing the discriminative capacity of 2 or more diagnostic tests.

Keywords: Capacidad discriminativa; Curva ROC; Cut-off point; Discriminative capacity; Punto de corte; ROC curve.