Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study
In many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point. As measurements are performed on the same individual there is a likely correlation between the continuous...
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Universidad Nacional de Colombia
2011-12-01
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doaj-f859c0965f3149d98055018d19efa26d2020-11-24T21:02:04ZengUniversidad Nacional de Colombia Revista Colombiana de Estadística0120-17512011-12-01343433450S0120-17512011000300003Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative StudyJOSÉ RAFAEL TOVAR0JORGE ALBERTO ACHCAR1Universidade Estadual de CampinasUniversidade de São PauloIn many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point. As measurements are performed on the same individual there is a likely correlation between the continuous underlying traits that can go unnoticed when the parameter estimation is done with the resulting binary variables. In this paper, we compare the performance of two different indexes developed to evaluate the dependence between diagnostic clinical tests that assume binary structure in the results with the performance of the binary covariance and two copula dependence parameters.http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-17512011000300003&lng=en&tlng=enCopulaFarlie Gumbel Morgenstern distributionGumbel distribution |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
JOSÉ RAFAEL TOVAR JORGE ALBERTO ACHCAR |
spellingShingle |
JOSÉ RAFAEL TOVAR JORGE ALBERTO ACHCAR Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study Revista Colombiana de Estadística Copula Farlie Gumbel Morgenstern distribution Gumbel distribution |
author_facet |
JOSÉ RAFAEL TOVAR JORGE ALBERTO ACHCAR |
author_sort |
JOSÉ RAFAEL TOVAR |
title |
Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study |
title_short |
Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study |
title_full |
Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study |
title_fullStr |
Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study |
title_full_unstemmed |
Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study |
title_sort |
indexes to measure dependence between clinical diagnostic tests: a comparative study |
publisher |
Universidad Nacional de Colombia |
series |
Revista Colombiana de Estadística |
issn |
0120-1751 |
publishDate |
2011-12-01 |
description |
In many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point. As measurements are performed on the same individual there is a likely correlation between the continuous underlying traits that can go unnoticed when the parameter estimation is done with the resulting binary variables. In this paper, we compare the performance of two different indexes developed to evaluate the dependence between diagnostic clinical tests that assume binary structure in the results with the performance of the binary covariance and two copula dependence parameters. |
topic |
Copula Farlie Gumbel Morgenstern distribution Gumbel distribution |
url |
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-17512011000300003&lng=en&tlng=en |
work_keys_str_mv |
AT joserafaeltovar indexestomeasuredependencebetweenclinicaldiagnostictestsacomparativestudy AT jorgealbertoachcar indexestomeasuredependencebetweenclinicaldiagnostictestsacomparativestudy |
_version_ |
1716776662471802880 |