Correctly Using Sensitivity, Specificity, and Predictive Values in Clinical Practice: How to Avoid Three Common Pitfalls

Correctly using sensitivity, specificity, and predictive values in clinical practice: how to avoid three common pitfalls.

OBJECTIVE Radiology is the specialty of imaging-based diagnostic tests. Understanding the science behind evaluating diagnostic test performance is essential for radiologists because we provide care to patients and interact with our colleagues. CONCLUSION Here, we review the key terminology used and common pitfalls encountered in the literature and in day-to-day discussions of diagnostic test ...

Sensitivity, Specificity, and Predictive Values: Foundations, Pliabilities, and Pitfalls in Research and Practice

Within the context of screening tests, it is important to avoid misconceptions about sensitivity, specificity, and predictive values. In this article, therefore, foundations are first established concerning these metrics along with the first of several aspects of pliability that should be recognized in relation to those metrics. Clarification is then provided about the definitions of sensitivit...

The Sensitivity, Specificity and Predictive Values of Snellen Chart Compared to the Diagnostic Test in Amblyopia Screening Program in Iran

Introduction Amblyopia is a leading cause of visual impairment in both childhood and adult populations. Our aim in this study was to assess the epidemiological characteristics of the amblyopia screening program in Iran. Materials and Methods A cross-sectional study was done on a randomly selected sample of 4,636 Iranian children who were referred to screening program in 2013 were participated i...

Sensitivity, specificity, predictive values, and likelihood ratios.

Avoid Common Pitfalls When Using Henry's Law

Henry’s law and the Henry’s constant are widely used in chemical and environmental engineering. Unfortunately, many people do not appreciate that the Henry’s “constant” is not a true constant, but instead has a significant non-linear temperature dependence. Ignoring this temperature dependence can lead to serious inaccuracies. This article discusses the temperature dependence of the Henry’s con...