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Scholar Results 1 - 10 of about 101 related to Mulherin: Spectrum bias or spectrum effect? Subgroup variation in diagnostic test evaluation. (0.09 sec) 

Spectrum bias or spectrum effect? Subgroup variation in diagnostic test evaluation

- annals.org [PDF] 
SA Mulherin, WC Miller - Annals of internal medicine, 2002 - Am Coll Physicians
Diagnostic tests must be evaluated in a clinically relevant popu- lation.
However, test performance often varies across population subgroups. Spectrum
bias, a term commonly used to describe this heterogeneity, is typically ...
Cited by 85 - Related articles - All 4 versions

Spectrum bias: a quantitative and graphical analysis of the variability of medical diagnostic …


C Goehring, A Perrier, A Morabia - Statistics in medicine, 2004 - interscience.wiley.com
The performance of a medical diagnostic test may vary in a subgroup of patients
according to the severity and clinical presentation of the disease. This
phenomenon is often referred to as the spectrum effect. There is currently ...
Cited by 18 - Related articles - BL Direct - All 3 versions

Limitations of sensitivity, specificity, likelihood ratio, and bayes' theorem in assessing …


DE Grobbee - Epidemiology, 1997 - jstor.org
We evaluated the extent to which the sensitivity, specificity, and likelihood
ratio of the exercise test to diagnose coronary artery disease vary across
subgroups of a certain patient popu- lation. Among 295 patients suspected ...
Cited by 83 - Related articles - BL Direct - All 4 versions

The effect of spectrum bias on the utility of magnetic resonance imaging and evoked …


PW O'Connor, CM Tansey, AS Detsky, AI … - Neurology, 1996 - AAN Enterprises
From the Department of Neurology, St. Michael's Hospital and the University of
Toronto (Dr. O'Connor); the Division of General Internal Medicine, the Toronto
Hospital (Dr. Tansey); the Department of Health Administration and ...
Cited by 21 - Related articles - BL Direct - All 3 versions

Spectrum bias of a rapid antigen detection test for group A {beta}-hemolytic streptococcal …


MC Hall, B Kieke, R Gonzales, EA Belongia - Pediatrics, 2004 - Am Acad Pediatrics
Methods. Laboratory and clinical records for a consecutive series of pediatric
patients who underwent RADT at the Marshfield Clinic between January 2002 and
March 2002 were reviewed retrospectively. Patients were stratified ...
Cited by 32 - Related articles - BL Direct - All 5 versions

How to use an article about a diagnostic test


CD Scales, P Dahm, S Sultan, D Campbell- … - The Journal of Urology, 2008 - Elsevier
Urologists frequently confront diagnostic dilemmas, prompting them to select,
perform and interpret additional diagnostic tests. Before applying a given
diagnostic test the user should ascertain that the chosen test would indeed ...
Cited by 3 - Related articles - All 15 versions

[PDF] TANI TESTİ ÇALIŞMALARINDA METODOLOJİK STANDARTLARIN KULLANILMASI


Y Genç - medicine.ankara.edu.tr
ÖZET Tanı testlerinin modern tıp alanında önemli bir yeri vardır.
Teknolojik gelişmelere paralel olarak her geçen gün eski- sinden daha iyi
olduğu iddia edilen yeni testler önerilmek- tedir. Fakat birçok test ...
Related articles - View as HTML - All 7 versions

Spectrum bias in the evaluation of diagnostic tests: lessons from the rapid dipstick test for …


MS Lachs, I Nachamkin, PH Edelstein, J … - Annals of internal medicine, 1992 - Am Coll Physicians
▪ Measurements: After the patient encounter, but before dipstick test or
culture was done, clinicians recorded the signs and symptoms that were the basis
for suspecting UTI and for performing a urinalysis and an estimate of the ...
Cited by 166 - Related articles - All 4 versions

Systematic reviews of diagnostic research. Considerations about assessment and …


HCW De Vet, T Van Der Weijden, JWM Muris, … - European journal of epidemiology, 2001 - Springer
Abstract. The aim of this paper is to provide a theoretical background for
performing and reading systematic reviews of diagnostic studies. We first
discuss items for assessment of methodological quality in diagnostic ...
Cited by 15 - Related articles - BL Direct - All 8 versions

Academic calculations versus clinical judgments: practicing physicians' use of quantitative …


R PhD, M Carrington, MD Lane, A David, MD … - The American journal of medicine, 1998 - Elsevier
Results: Of the 300 surveyed physicians, 8 (3%) used the recommended formal
Bayesian calculations, 3 used ROC curves, and 2 used likelihood ratios. The main
reasons cited for non-use included impracticality of the Bayesian method ...
Cited by 66 - Related articles - BL Direct - All 6 versions


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