Addressing selection bias in diagnostic accuracy studies
نویسندگان
چکیده
منابع مشابه
Evidence of bias and variation in diagnostic accuracy studies.
BACKGROUND Studies with methodologic shortcomings can overestimate the accuracy of a medical test. We sought to determine and compare the direction and magnitude of the effects of a number of potential sources of bias and variation in studies on estimates of diagnostic accuracy. METHODS We identified meta-analyses of the diagnostic accuracy of tests through an electronic search of the databas...
متن کاملUnderstanding sources of bias in diagnostic accuracy studies.
CONTEXT Accuracy is an important feature of any diagnostic test. There has been an increasing awareness of deficiencies in study design that can create bias in estimates of test accuracy. Many pathologists are unaware of these sources of bias. OBJECTIVE To explain the causes and increase awareness of several common types of bias that result from deficiencies in the design of diagnostic accura...
متن کاملStudies of diagnostic test accuracy
Definition of a diagnostic test accuracy study? o A diagnostic test accuracy study evaluates the accuracy of index test in correctly distinguishing between those with disease and those without disease compared to gold standard test. o Gold standard test is also called criterion test or reference test. o For a diagnostic test to be accurate, it should be both valid (accuracy) and reliable (preci...
متن کاملThe Potential for Bias and the Need for Clear Reporting in Studies of Diagnostic Accuracy
SESSIONI Mercoledì 9 giugno 2004 LETTURA PLENARIA LP1 SESSIONE 1 S1.1 S1.5 SESSIONE 2 S2.1 S2.4 SESSIONE 3 S3.1 S3.2 Giovedì 10 giugno 2004 LETTURA PLENARIA LP2 SESSIONE 4 S4.1 S4.3 SESSIONE 5 S5.1 S5.7 SESSIONE 6 S6.1 S6.5 Venedì 11 giugno 2004 LETTURA PLENARIA LP3 SESSIONE 7 S7.1 S7.3 SESSIONE 8 S8.1 S8.5
متن کاملAdjusting for partial verification or workup bias in meta-analyses of diagnostic accuracy studies.
A key requirement in the design of diagnostic accuracy studies is that all study participants receive both the test under evaluation and the reference standard test. For a variety of practical and ethical reasons, sometimes only a proportion of patients receive the reference standard, which can bias the accuracy estimates. Numerous methods have been described for correcting this partial verific...
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ژورنال
عنوان ژورنال: Pediatrics International
سال: 2019
ISSN: 1328-8067,1442-200X
DOI: 10.1111/ped.13860