Basic Biostatistical Concepts for the Fetal Physician —I: The 2 × 2 Table and Its Derivatives

AbstractIn the field of fetal medicine, correct interpretation and optimal utilization of diagnostic tests and signs have a major impact on the pregnancy outcome. The attributes of a diagnostic test, such as sensitivity and specificity, and the attributes of a test result such as positive and negative predictive values, and positive and negative likelihood ratios are important yet poorly utilized concepts in clinical practice. This paper explains these concepts using simple language and examples from the fetal medicine literature.
Source: Journal of Fetal Medicine - Category: Perinatology & Neonatology Source Type: research