%0 Journal Article %1 Bloch1997 %A Bloch, D A %D 1997 %J Biometrics %K Algorithms Biometry Case-ControlStudies DiagnosticTests Humans Risk Routine Routine:standards Routine:statistics&numericaldata SampleSize SensitivityandSpecificity %N 1 %P 73-85 %T Comparing two diagnostic tests against the same "gold standard" in the same sample. %U http://www.ncbi.nlm.nih.gov/pubmed/9147604 %V 53 %X Methods are proposed for comparing two diagnostic tests for the same data where a threshold for positive for each test is specified. One method contrasts the diagnostic tests' estimated risks. A second method compares the two tests' kappa coefficients. When thresholds for positive test results are specified a priori, maximum likelihood estimators and their asymptotic variances are derived and test statistics are presented for both case-control and naturalistic methods of sampling. The bootstrap is proposed as a method to assess differences in risk estimators when thresholds for positive test results are chosen by scanning the data. Examples are given to illustrate the methods.

@article{Bloch1997, abstract = {Methods are proposed for comparing two diagnostic tests for the same data where a threshold for positive for each test is specified. One method contrasts the diagnostic tests' estimated risks. A second method compares the two tests' kappa coefficients. When thresholds for positive test results are specified a priori, maximum likelihood estimators and their asymptotic variances are derived and test statistics are presented for both case-control and naturalistic methods of sampling. The bootstrap is proposed as a method to assess differences in risk estimators when thresholds for positive test results are chosen by scanning the data. Examples are given to illustrate the methods.}, added-at = {2023-02-03T11:44:35.000+0100}, author = {Bloch, D A}, biburl = {https://www.bibsonomy.org/bibtex/29e20d727fdb5ef4a3b186a09ab92b7d3/jepcastel}, interhash = {2ce9459a7f68aa25386df38918cc4f93}, intrahash = {9e20d727fdb5ef4a3b186a09ab92b7d3}, issn = {0006-341X}, journal = {Biometrics}, keywords = {Algorithms Biometry Case-ControlStudies DiagnosticTests Humans Risk Routine Routine:standards Routine:statistics&numericaldata SampleSize SensitivityandSpecificity}, month = {3}, note = {3366<m:linebreak></m:linebreak>Proves diagnòstiques}, number = 1, pages = {73-85}, pmid = {9147604}, timestamp = {2023-02-03T11:44:35.000+0100}, title = {Comparing two diagnostic tests against the same "gold standard" in the same sample.}, url = {http://www.ncbi.nlm.nih.gov/pubmed/9147604}, volume = 53, year = 1997 }