Universität zu Köln

Herich, L., Lehmacher, W. and Hellmich, M. (2015). Drop the Likelihood Ratio A Novel Non-electronic Tool for Interpreting Diagnostic Test Results. Methods Inf. Med., 54 (3). S. 283 - 288. STUTTGART: SCHATTAUER GMBH-VERLAG MEDIZIN NATURWISSENSCHAFTEN. ISSN 0026-1270

Full text not available from this repository.

Abstract

Objective: To present a geometric ruler to determine predictive values of binary diagnostic test results from prevalence, sensitivity and specificity without calculation. Methods: On logarithmic scale the relationships between pre-/post-test odds and the likelihood ratio as well as sensitivity, specificity and the likelihood ratio appear as simple linear (additive) equations. Results: Each of these additive equations can be solved geometrically in form of a ruler with three scales. By amalgamation we devise a novel non-electronic tool which omits the intermediate step of likelihood ratio determination. Conclusions: We propose a simple geometric method to aid in interpretation of diagnostic test results for both practical and educational purposes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Herich, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lehmacher, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hellmich, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-416568
DOI:	10.3414/ME14-01-0091
Journal or Publication Title:	Methods Inf. Med.
Volume:	54
Number:	3
Page Range:	S. 283 - 288
Date:	2015
Publisher:	SCHATTAUER GMBH-VERLAG MEDIZIN NATURWISSENSCHAFTEN
Place of Publication:	STUTTGART
ISSN:	0026-1270
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INFORMATION GRAPHS Multiple languages Computer Science, Information Systems; Health Care Sciences & Services; Medical Informatics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41656