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Osteometric analysis of intercostal variation and sexual dimorphism in the sternal end of the rib of modern American blacks

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Date Issued:
1997
Summary:
Research on the human rib has shown that the sternal end of this bone manifests differences in age, sex and race. It was also found that intercostal variation may affect the expression of these traits. The purpose of this study is to osteometrically analyze intercostal variation and sexual dimorphism in ribs 1-7 from a known sample of American black males (N = 110) and females (N = 52) collected from recent forensic autopsy cases. Results indicate that although intercostal variation is significant, there is too much overlap to metrically determine rib position. Sexual dimorphism is sufficient to develop discriminant function formulae that separate males and females with a minimum accuracy of 75% (rib 1) and a maximum of 83% (rib 4). However, these functions are population and rib specific. This research confirms earlier findings on ribs 3-5, and expands the potential to determine sex from ribs 1-7.
Title: Osteometric analysis of intercostal variation and sexual dimorphism in the sternal end of the rib of modern American blacks.
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Name(s): Allen, Mary Barbot
Florida Atlantic University, Degree Grantor
Dorothy F. Schmidt College of Arts and Letters
Department of Anthropology
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1997
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 90 p.
Language(s): English
Summary: Research on the human rib has shown that the sternal end of this bone manifests differences in age, sex and race. It was also found that intercostal variation may affect the expression of these traits. The purpose of this study is to osteometrically analyze intercostal variation and sexual dimorphism in ribs 1-7 from a known sample of American black males (N = 110) and females (N = 52) collected from recent forensic autopsy cases. Results indicate that although intercostal variation is significant, there is too much overlap to metrically determine rib position. Sexual dimorphism is sufficient to develop discriminant function formulae that separate males and females with a minimum accuracy of 75% (rib 1) and a maximum of 83% (rib 4). However, these functions are population and rib specific. This research confirms earlier findings on ribs 3-5, and expands the potential to determine sex from ribs 1-7.
Identifier: 9780591449778 (isbn), 15422 (digitool), FADT15422 (IID), fau:12189 (fedora)
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): Adviser: Susan R. Loth.
Thesis (M.A.)--Florida Atlantic University, 1997.
Subject(s): Black Studies
Anthropology, Physical
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/15422
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.