Evaluating Accuracy and Precision in Morphologic Traits for Sexual Dimorphism in Malnutrition Human Skull: a Comparative Study

Evaluating Accuracy and Precision in Morphologic Traits for Sexual Dimorphism in Malnutrition Human Skull: a Comparative Study

Alternative title Evaluación de la Exactitud y Precisión en los Rasgos Morfológicos de Dimorfismo Sexual en Cráneos Humanos Malnutridos: un Estudio Comparativo
Author Galdames, Ivan Claudio Suazo Autor UNIFESP Google Scholar
Matamala, Daniela Zavando Autor UNIFESP Google Scholar
Smith, Ricardo Luiz Autor UNIFESP Google Scholar
Institution Univ Talca
Universidade Federal de São Paulo (UNIFESP)
Abstract One of the most important purposes of anthropological studies of human skeletons protocol is the determination of sex. Some skulls may be wrongly classified due to systemic conditions presented during the life of individuals who affected the muscle forces that act on bones, as is the case of severe malnutrition. The purpose of this study is to analyze the effect of severe malnutrition on morphological determinants of sexual dimorphism classically studied in the visual analysis of the skull. 163 human skulls were analized with sex, age and cause of death known, belonging to the collection of Universidad Federal de Sao Paulo (UNIFESP). We performed visual inspection of the skull and diagnosis of sex based on size and overall architecture of the skull, an aspect of the zygomatic bone, size and roughness of the mastoid process, ridges of the occipital bone and general appearance of the jaw. The skulls were classified into two groups according to whether severe malnutrition had described in his cause of death (n=60) or had other cause of death (n=103). The results of the inspection were compared with the registry to determine the accuracy in diagnosis and sensitivity of the method for male and female in both groups analyzed. In the group with malnutrition the best indicator was the appearance of the zygomatic bone, with a 86.6% accuracy. In another group closely was found in the size of the mastoid (87.3%). In both groups the highest values of sensitivity were for male (83.3-95.3%). The sensitivity to female showed lower values in the group without malnutrition (69.2-76.9%) than in the group withmalnutrition (72.4-89.65%), these differences were statistically significant (p < 0.05).
Keywords Sexual Dimorphism
Determination of sex
Severe malnutrition
Language English
Date 2008-12-01
Published in International Journal Of Morphology. Temuco: Soc Chilena Anatomia, v. 26, n. 4, p. 877-881, 2008.
ISSN 0717-9502 (Sherpa/Romeo, impact factor)
Publisher Soc Chilena Anatomia
Extent 877-881
Origin http://dx.doi.org/10.4067/S0717-95022008000400015
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000266072600015
SciELO ID S0717-95022008000400015 (statistics in SciELO)
URI http://repositorio.unifesp.br/11600/44062

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