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Sex assessment from the carpals bones: discriminant function analysis in a 20th century Spanish sample

Autor(es) y otros:
Mastrangelo, Paola; De Luca, Stefano; Alemán Aguilera, Inmaculada; Botella López, Miguel
Palabra(s) clave:

Sex assessment

Human identification

Carpal bones

Fecha de publicación:
2011-03-20
Editorial:

Elsevier

Versión del editor:
https://doi.org/10.1016/j.forsciint.2011.01.007
Citación:
Forensic Science International, 214(1–3), p. 216.e1-216.e10 (2011); doi:10.1016/j.forsciint.2011.01.007
Descripción física:
p. 216.e1-216.e10
Resumen:

Sex assessment is one of the first essential steps in human identification, in both medico-legal cases and bio-archaeological contexts. Fragmentary human remains compromised by different types of inhumation or physical insults may frustrate the use of the traditional sex estimation methods, such as the analysis of the skull and pelvis. Currently, the application of discriminant functions to sex unidentified skeletal remains is steadily increasing. However, several studies have demonstrated that, due to variation in size and patterns of sexual dimorphism, discriminant function equations are population-specific [1,2,5,12,61]. In this study, in order to improve sex assessment from skeletal remains and to establish population-specific discriminant functions, the diagnostic values of the carpal bones were considered. A sample of 100 individuals (50 males and 50 females) of known sex and age was analyzed. They belong to a 20th century identified collection from the Municipal Cemetery of ‘‘San Jose´ ’’, Granada (Spain) and housed in the Laboratory of Anthropology, Faculty of Medicine, University of Granada (Spain). The age of the individuals ranged between 22 and 85 years. Between four and nine measurements of each carpal bone were performed. Discriminant function statistics showed a sex assessment accuracy as high as 97.8%. The results suggest that carpal bones can be used for assessingsex in both forensic and bio-archaeological identification procedures.

Sex assessment is one of the first essential steps in human identification, in both medico-legal cases and bio-archaeological contexts. Fragmentary human remains compromised by different types of inhumation or physical insults may frustrate the use of the traditional sex estimation methods, such as the analysis of the skull and pelvis. Currently, the application of discriminant functions to sex unidentified skeletal remains is steadily increasing. However, several studies have demonstrated that, due to variation in size and patterns of sexual dimorphism, discriminant function equations are population-specific [1,2,5,12,61]. In this study, in order to improve sex assessment from skeletal remains and to establish population-specific discriminant functions, the diagnostic values of the carpal bones were considered. A sample of 100 individuals (50 males and 50 females) of known sex and age was analyzed. They belong to a 20th century identified collection from the Municipal Cemetery of ‘‘San Jose´ ’’, Granada (Spain) and housed in the Laboratory of Anthropology, Faculty of Medicine, University of Granada (Spain). The age of the individuals ranged between 22 and 85 years. Between four and nine measurements of each carpal bone were performed. Discriminant function statistics showed a sex assessment accuracy as high as 97.8%. The results suggest that carpal bones can be used for assessingsex in both forensic and bio-archaeological identification procedures.

URI:
https://hdl.handle.net/10651/76129
DOI:
10.1016/j.forsciint.2011.01.007
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