Multiple imputation for correcting verification bias
نویسندگان
چکیده
منابع مشابه
Multiple imputation for correcting verification bias.
In the case in which all subjects are screened using a common test and only a subset of these subjects are tested using a golden standard test, it is well documented that there is a risk for bias, called verification bias. When the test has only two levels (e.g. positive and negative) and we are trying to estimate the sensitivity and specificity of the test, we are actually constructing a confi...
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Sensitivity and specificity are common measures of the accuracy of a diagnostic test. The usual estimators of these quantities are unbiased if data on the diagnostic test result and the true disease status are obtained from all subjects in an appropriately selected sample. In some studies, verification of the true disease status is performed only for a subset of subjects, possibly depending on ...
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ژورنال
عنوان ژورنال: Statistics in Medicine
سال: 2006
ISSN: 0277-6715
DOI: 10.1002/sim.2494