Tamargo BTO, Jiménez PRE, Hidalgo CT, Mora DI, Peña CA, Gutiérrez RÁR

Language: Spanish
References: 0
Page: 227-241
PDF size: 103.26 Kb.

ABSTRACT

Introduction: The effectiveness of a diagnostic means refers to the ability to detect the true sick patient. The sensitivity, specificity and positive and negative predictive values are indicators of the validity of a diagnostic means. Another way to obtain the probability of getting sick is through the estimation of positive and negative likelihood ratios.
Objective: To describe general concepts and interpretation of sensitivity, specificity, predictive values and diagnostic thresholds.
Methods: A review of articles and books on the basic properties of a diagnostic means was made in order to interpret them correctly and thereby optimize their use in the clinical setting.
Conclusions: Our paper will serve as a guide for health professionals who are constantly debating the need to make correct diagnosis to treat patients timely and to avoid complications and, to avoid death when possible.