Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/22726 |
Resumo: | This study assessed the accuracy of fractal analysis (FA) to estimate chronological age and sex in Brazilian adults for forensic investigations. The gender-balanced sample comprised lateral cephalometric radiographs of 120 individuals, stratified according to age (20-29, 30-39, 40-49, 50-59 years) and sex (female and male). A trained calibrated examiner measured the fractal dimension (FD) of the mandibular ramus and mandibular angle. Linear regression and multiple logistic discriminant analysis were carried out to explore the accuracy of FA. For all analyses, p-values < .05 indicated statistical significance. Overall, mean FD values were 1.49±0.10 for the mandibular ramus and 1.48±0.09 for mandibular angle. Results were more accurate in males than females for discriminating age and sex. The multiple discriminant analysis indicated that FA distinguished sex in 61.7% males and 58.3% females. In addition, the mean difference between actual and predicted value was 9.5 years and 10.1 years for men and women, respectively. Fractal analysis accurately identified sex- and age-related differences in the trabecular pattern of the mandible of Brazilian adults, confirming its utility for forensic investigations. Further studies investigating other populations are needed to assess the accuracy of FA for Forensic Dentistry. |
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Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysisEstimación de edad y sexo mediante análisis fractal en adultos brasileños: un análisis discriminanteEstimativa de idade e sexo por meio da análise fractal em adultos brasileiros: uma análise discriminanteOdontologia LegalProcessamento de Imagem Assistida por ComputadorDeterminação da Idade pelo EsqueletoAnálise para Determinação do Sexo.Odontología ForenseProcesamiento de Imagen Asistido por ComputadorDeterminación de la Edad por el EsqueletoAnálisis para Determinación del Sexo.Forensic DentistryImage Processing, Computer-AssistedAge Determination by SkeletonSex Determination Analysis.This study assessed the accuracy of fractal analysis (FA) to estimate chronological age and sex in Brazilian adults for forensic investigations. The gender-balanced sample comprised lateral cephalometric radiographs of 120 individuals, stratified according to age (20-29, 30-39, 40-49, 50-59 years) and sex (female and male). A trained calibrated examiner measured the fractal dimension (FD) of the mandibular ramus and mandibular angle. Linear regression and multiple logistic discriminant analysis were carried out to explore the accuracy of FA. For all analyses, p-values < .05 indicated statistical significance. Overall, mean FD values were 1.49±0.10 for the mandibular ramus and 1.48±0.09 for mandibular angle. Results were more accurate in males than females for discriminating age and sex. The multiple discriminant analysis indicated that FA distinguished sex in 61.7% males and 58.3% females. In addition, the mean difference between actual and predicted value was 9.5 years and 10.1 years for men and women, respectively. Fractal analysis accurately identified sex- and age-related differences in the trabecular pattern of the mandible of Brazilian adults, confirming its utility for forensic investigations. Further studies investigating other populations are needed to assess the accuracy of FA for Forensic Dentistry.Este estudio evaluó la precisión del análisis fractal (FA) para estimar la edad cronológica y el sexo en individuos adultos brasileños para investigaciones forenses. La muestra balanceada estuvo compuesta por radiografías cefalométricas laterales de 120 individuos, las cuales fueron organizadas según grupo de edad (20-29, 30-39, 40-49, 50-59 años) y sexo (femenino y masculino). Todas las análisis de la rama mandibular y del ángulo mandibular fueron realizadas por un examinador capacitado y calibrado. Para la estimación de edad y sexo, se utilizó regresión lineal y análisis discriminante logístico múltiple. En consecuencia, verificamos la precisión del FA midiendo las diferencias entre la edad pronosticada y la real. Para todas las análisis, un valor de p <0,05 indicó la significancia estadística. En general, la media de los valores de la dimensión fractal (FD) fue 1,49 ± 0,10 para la rama mandibular y 1,48 ± 0,09 para el ángulo mandibular. En general, los hombres obtuvieron mejores resultados con el FA que las mujeres en la discriminación por edad y sexo. El análisis discriminante múltiple indicó que FA distingue el sexo en el 61,7% de los hombres y el 58,3% de las mujeres. Además, la diferencia media entre el valor real y el predicho fue de 9,5 años y 10,1 años para hombres y mujeres, respectivamente. Por lo tanto, observamos que FA es precisa para identificar cambios relacionados con el sexo y la edad en el patrón trabecular de la mandíbula de adultos brasileños en investigaciones forenses. Se necesitan más estudios que investiguen otras poblaciones para evaluar la precisión del FA para odontología forense.Esse estudo avaliou a acurácia da análise fractal (FA) para estimar a idade cronológica e o sexo de adultos brasileiros para investigações forenses. A amostra balanceada envolveu as radiografias cefalométricas laterais de 120 indivíduos, que foram organizadas conforme o grupo etário (20-29, 30-39, 40-49, 50-59 anos) e o sexo (masculino e feminino). Todas as análises do ramo e do ângulo mandibular foram realizadas por um examinador treinado e calibrado. Para a estimativa da idade e do sexo, utilizaram-se a regressão linear e a análise discriminante logística múltipla. Adicionalmente, verificou-se a precisão da FA a partir da diferença absoluta entre a idade real e a idade predita. Para todas as análises, um p-valor < 0,05 indicou a significância estatística. No total, a média dos valores da dimensão fractal (FD) foram de 1,49±0,10 para o ramo mandibular e de 1,48±0,09 para o ângulo mandibular. Para a discriminação do sexo e da idade, os homens tiveram melhores resultados do que as mulheres. A análise discriminante múltipla indicou que a FA distingue o sexo em 61,7% dos homens e 58,3% das mulheres. Adicionalmente, a diferença média entre a idade real e a predita foi de 9,5 anos e 10,1 anos para o sexo masculino e feminino, respectivamente. Portanto, nós observamos que a FA identificou as mudanças no padrão do trabeculado ósseo mandibular aplicáveis para se estimar a idade cronológica e o sexo em adultos brasileiros. Estudos em outras populações são necessários para investigar a acurácia da FA para a Odontologia Forense.Research, Society and Development2021-11-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2272610.33448/rsd-v10i15.22726Research, Society and Development; Vol. 10 No. 15; e240101522726Research, Society and Development; Vol. 10 Núm. 15; e240101522726Research, Society and Development; v. 10 n. 15; e2401015227262525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/22726/20279Copyright (c) 2021 Fabrício dos Santos Menezes; Társilla de Menezes Dinísio; Thaís Feitosa Leitão de Oliveira; Ana Maria Braga de Oliveira; Claudio Costa; Edgard Michel-Crosato; Maria Gabriela Haye Biazevichttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMenezes, Fabrício dos SantosDinísio, Társilla de Menezes Oliveira, Thaís Feitosa Leitão deOliveira, Ana Maria Braga deCosta, Claudio Michel-Crosato, Edgard Biazevic, Maria Gabriela Haye 2021-12-06T10:13:53Zoai:ojs.pkp.sfu.ca:article/22726Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:41:48.821259Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis Estimación de edad y sexo mediante análisis fractal en adultos brasileños: un análisis discriminante Estimativa de idade e sexo por meio da análise fractal em adultos brasileiros: uma análise discriminante |
| title |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| spellingShingle |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis Menezes, Fabrício dos Santos Odontologia Legal Processamento de Imagem Assistida por Computador Determinação da Idade pelo Esqueleto Análise para Determinação do Sexo. Odontología Forense Procesamiento de Imagen Asistido por Computador Determinación de la Edad por el Esqueleto Análisis para Determinación del Sexo. Forensic Dentistry Image Processing, Computer-Assisted Age Determination by Skeleton Sex Determination Analysis. |
| title_short |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| title_full |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| title_fullStr |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| title_full_unstemmed |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| title_sort |
Age and sex estimation using fractal analysis in Brazilian adults: a discriminant analysis |
| author |
Menezes, Fabrício dos Santos |
| author_facet |
Menezes, Fabrício dos Santos Dinísio, Társilla de Menezes Oliveira, Thaís Feitosa Leitão de Oliveira, Ana Maria Braga de Costa, Claudio Michel-Crosato, Edgard Biazevic, Maria Gabriela Haye |
| author_role |
author |
| author2 |
Dinísio, Társilla de Menezes Oliveira, Thaís Feitosa Leitão de Oliveira, Ana Maria Braga de Costa, Claudio Michel-Crosato, Edgard Biazevic, Maria Gabriela Haye |
| author2_role |
author author author author author author |
| dc.contributor.author.fl_str_mv |
Menezes, Fabrício dos Santos Dinísio, Társilla de Menezes Oliveira, Thaís Feitosa Leitão de Oliveira, Ana Maria Braga de Costa, Claudio Michel-Crosato, Edgard Biazevic, Maria Gabriela Haye |
| dc.subject.por.fl_str_mv |
Odontologia Legal Processamento de Imagem Assistida por Computador Determinação da Idade pelo Esqueleto Análise para Determinação do Sexo. Odontología Forense Procesamiento de Imagen Asistido por Computador Determinación de la Edad por el Esqueleto Análisis para Determinación del Sexo. Forensic Dentistry Image Processing, Computer-Assisted Age Determination by Skeleton Sex Determination Analysis. |
| topic |
Odontologia Legal Processamento de Imagem Assistida por Computador Determinação da Idade pelo Esqueleto Análise para Determinação do Sexo. Odontología Forense Procesamiento de Imagen Asistido por Computador Determinación de la Edad por el Esqueleto Análisis para Determinación del Sexo. Forensic Dentistry Image Processing, Computer-Assisted Age Determination by Skeleton Sex Determination Analysis. |
| description |
This study assessed the accuracy of fractal analysis (FA) to estimate chronological age and sex in Brazilian adults for forensic investigations. The gender-balanced sample comprised lateral cephalometric radiographs of 120 individuals, stratified according to age (20-29, 30-39, 40-49, 50-59 years) and sex (female and male). A trained calibrated examiner measured the fractal dimension (FD) of the mandibular ramus and mandibular angle. Linear regression and multiple logistic discriminant analysis were carried out to explore the accuracy of FA. For all analyses, p-values < .05 indicated statistical significance. Overall, mean FD values were 1.49±0.10 for the mandibular ramus and 1.48±0.09 for mandibular angle. Results were more accurate in males than females for discriminating age and sex. The multiple discriminant analysis indicated that FA distinguished sex in 61.7% males and 58.3% females. In addition, the mean difference between actual and predicted value was 9.5 years and 10.1 years for men and women, respectively. Fractal analysis accurately identified sex- and age-related differences in the trabecular pattern of the mandible of Brazilian adults, confirming its utility for forensic investigations. Further studies investigating other populations are needed to assess the accuracy of FA for Forensic Dentistry. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-11-25 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/22726 10.33448/rsd-v10i15.22726 |
| url |
https://rsdjournal.org/index.php/rsd/article/view/22726 |
| identifier_str_mv |
10.33448/rsd-v10i15.22726 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
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https://rsdjournal.org/index.php/rsd/article/view/22726/20279 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development; Vol. 10 No. 15; e240101522726 Research, Society and Development; Vol. 10 Núm. 15; e240101522726 Research, Society and Development; v. 10 n. 15; e240101522726 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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