Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex

This study assesses the quality, as a diagnostic test, of the main indicators of morphological sexual dimorphism through direct anthropometry, biostatistics tools and clinical epidemiology. This study used 284 skulls of adult Brazilians, of which 187 were male and 97 female. A study of the cross-eva...

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Autores principales: Suazo Galdames,Iván Claudio, Zavando Matamala,Daniela Alejandra, Smith,Ricardo Luiz
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2009
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200012
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spelling oai:scielo:S0717-950220090002000122009-09-10Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of SexSuazo Galdames,Iván ClaudioZavando Matamala,Daniela AlejandraSmith,Ricardo Luiz Forensic anthropology Sex identification Sexual dimorphism Diagnosis test This study assesses the quality, as a diagnostic test, of the main indicators of morphological sexual dimorphism through direct anthropometry, biostatistics tools and clinical epidemiology. This study used 284 skulls of adult Brazilians, of which 187 were male and 97 female. A study of the cross-evaluation of the diagnostic test was performed; it was a qualitative approach based on visual examination of 16 traditional indicators of morphological sexual dimorphism, where each indicator determined the level of accuracy, sensitivity, predictive values, likelihood ratios, and odds ratio. All indicators studied had high levels of accuracy (84.75­72.89%). The best indicators were found in traits whose formation is related to the insertion and action of major muscle groups. In 14 of the 16 indicators, intraobserver error was <10%. The best indicators of morphological sexual dimorphism were mastoid process, zygomatic bone, mandible, and roughness of the occipital bone. The authors concluded that morphological dimorphism indicators present an adequate performance as diagnostic tests, however, the values of accuracy and sensitivity must be matched with more robust indicators that are independent of the distribution of the sample, and integrate diagnostic errors such as the likelihood ratios, odds ratios, and positive predictive values.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.27 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200012en10.4067/S0717-95022009000200012
institution Scielo Chile
collection Scielo Chile
language English
topic Forensic anthropology
Sex identification
Sexual dimorphism
Diagnosis test
spellingShingle Forensic anthropology
Sex identification
Sexual dimorphism
Diagnosis test
Suazo Galdames,Iván Claudio
Zavando Matamala,Daniela Alejandra
Smith,Ricardo Luiz
Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
description This study assesses the quality, as a diagnostic test, of the main indicators of morphological sexual dimorphism through direct anthropometry, biostatistics tools and clinical epidemiology. This study used 284 skulls of adult Brazilians, of which 187 were male and 97 female. A study of the cross-evaluation of the diagnostic test was performed; it was a qualitative approach based on visual examination of 16 traditional indicators of morphological sexual dimorphism, where each indicator determined the level of accuracy, sensitivity, predictive values, likelihood ratios, and odds ratio. All indicators studied had high levels of accuracy (84.75­72.89%). The best indicators were found in traits whose formation is related to the insertion and action of major muscle groups. In 14 of the 16 indicators, intraobserver error was <10%. The best indicators of morphological sexual dimorphism were mastoid process, zygomatic bone, mandible, and roughness of the occipital bone. The authors concluded that morphological dimorphism indicators present an adequate performance as diagnostic tests, however, the values of accuracy and sensitivity must be matched with more robust indicators that are independent of the distribution of the sample, and integrate diagnostic errors such as the likelihood ratios, odds ratios, and positive predictive values.
author Suazo Galdames,Iván Claudio
Zavando Matamala,Daniela Alejandra
Smith,Ricardo Luiz
author_facet Suazo Galdames,Iván Claudio
Zavando Matamala,Daniela Alejandra
Smith,Ricardo Luiz
author_sort Suazo Galdames,Iván Claudio
title Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
title_short Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
title_full Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
title_fullStr Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
title_full_unstemmed Performance Evaluation as a Diagnostic Test for Traditional Methods for Forensic Identification of Sex
title_sort performance evaluation as a diagnostic test for traditional methods for forensic identification of sex
publisher Sociedad Chilena de Anatomía
publishDate 2009
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200012
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AT zavandomatamaladanielaalejandra performanceevaluationasadiagnostictestfortraditionalmethodsforforensicidentificationofsex
AT smithricardoluiz performanceevaluationasadiagnostictestfortraditionalmethodsforforensicidentificationofsex
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