Analysis of humeral septal apertures in forensic and archaeological samples

Septal apertures (SA) are defects in the bony septum that separates the olecranon and coronoid fossae. Previous research suggests the presence of SA are highly variable between populations and generally occur at higher frequencies in females and on left humeri. Here, we analyze specimens from two mo...

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Main Authors: Stephanie A. Baker, Ashlee Boyd, Sydney Anderson, Alexa P. Kelly, Gisselle Garcia, Timothy L. Campbell
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Forensic Science International: Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2665910722000196
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author Stephanie A. Baker
Ashlee Boyd
Sydney Anderson
Alexa P. Kelly
Gisselle Garcia
Timothy L. Campbell
author_facet Stephanie A. Baker
Ashlee Boyd
Sydney Anderson
Alexa P. Kelly
Gisselle Garcia
Timothy L. Campbell
author_sort Stephanie A. Baker
collection DOAJ
description Septal apertures (SA) are defects in the bony septum that separates the olecranon and coronoid fossae. Previous research suggests the presence of SA are highly variable between populations and generally occur at higher frequencies in females and on left humeri. Here, we analyze specimens from two modern willed body forensic collections (n = 617) and three archaeological assemblages (n = 103). Where feasible, we test for differences between sexes, sides, aperture sizes, and age distributions within self-identified racial categories and in the complete assemblage. We also present a novel assessment of SA and handedness. In brief, significant sex-based differences were found in one archaeological sample, the combined forensic sample, and the white racial category. Significant side-based differences favoring the left were found in the combined forensic and male specific sample. Significant differences in SA sizes were identified when bilaterally expressed in the forensic mixed sex sample. A test for aperture presence and hand dominance found significant differences with the majority (71%) of unilateral apertures found on the non-dominant side. Aperture presence was strongly correlated (r > 0.97) with sample size and uncorrelated with age cohorts. While high (> 40%) population-based frequencies were found in the archaeological samples similar to previous studies, a high frequency (17.8%) was also found in the white racial category exceeding most values reported for populations of European ancestry. This study contributes to the understanding of SA by providing a novel analysis of their association with handedness and provides new data on their prevalence in both archaeological and modern forensic assemblages.
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spelling doaj.art-fa6603aeb45b464382be6af3b32eb8f42022-12-22T00:27:59ZengElsevierForensic Science International: Reports2665-91072022-07-015100273Analysis of humeral septal apertures in forensic and archaeological samplesStephanie A. Baker0Ashlee Boyd1Sydney Anderson2Alexa P. Kelly3Gisselle Garcia4Timothy L. Campbell5Texas State University, Department of Anthropology, 266 Evans Liberal Arts, 601 University Drive, San Marcos, TX 78666-4684, USA; Corresponding author.Texas Tech University, Department of Forensic Science, 207 Gilbert Dr., Reese Technology Center Building 555, Lubbock, TX 79409, USAGeorge Mason University, Department of Forensic Science, 4400 University Dr., Fairfax, VA 22030, USAUniversity of North Texas Health Science Center, Center for Anatomical Sciences, 3500 Camp Bowie BLVD, Fort Worth, TX 76107, USAAmerican Museum of Natural History, Department of Anthropology, 200 Central Park West, New York, NY 10024, USABaylor University, Department of Anthropology, Department of Anthropology, One Bear Place #97173, Waco, TX 76798, USASeptal apertures (SA) are defects in the bony septum that separates the olecranon and coronoid fossae. Previous research suggests the presence of SA are highly variable between populations and generally occur at higher frequencies in females and on left humeri. Here, we analyze specimens from two modern willed body forensic collections (n = 617) and three archaeological assemblages (n = 103). Where feasible, we test for differences between sexes, sides, aperture sizes, and age distributions within self-identified racial categories and in the complete assemblage. We also present a novel assessment of SA and handedness. In brief, significant sex-based differences were found in one archaeological sample, the combined forensic sample, and the white racial category. Significant side-based differences favoring the left were found in the combined forensic and male specific sample. Significant differences in SA sizes were identified when bilaterally expressed in the forensic mixed sex sample. A test for aperture presence and hand dominance found significant differences with the majority (71%) of unilateral apertures found on the non-dominant side. Aperture presence was strongly correlated (r > 0.97) with sample size and uncorrelated with age cohorts. While high (> 40%) population-based frequencies were found in the archaeological samples similar to previous studies, a high frequency (17.8%) was also found in the white racial category exceeding most values reported for populations of European ancestry. This study contributes to the understanding of SA by providing a novel analysis of their association with handedness and provides new data on their prevalence in both archaeological and modern forensic assemblages.http://www.sciencedirect.com/science/article/pii/S2665910722000196Septal apertureSupratrochlear ForamenHumerusNon-metric traitsForensic anthropology population data
spellingShingle Stephanie A. Baker
Ashlee Boyd
Sydney Anderson
Alexa P. Kelly
Gisselle Garcia
Timothy L. Campbell
Analysis of humeral septal apertures in forensic and archaeological samples
Forensic Science International: Reports
Septal aperture
Supratrochlear Foramen
Humerus
Non-metric traits
Forensic anthropology population data
title Analysis of humeral septal apertures in forensic and archaeological samples
title_full Analysis of humeral septal apertures in forensic and archaeological samples
title_fullStr Analysis of humeral septal apertures in forensic and archaeological samples
title_full_unstemmed Analysis of humeral septal apertures in forensic and archaeological samples
title_short Analysis of humeral septal apertures in forensic and archaeological samples
title_sort analysis of humeral septal apertures in forensic and archaeological samples
topic Septal aperture
Supratrochlear Foramen
Humerus
Non-metric traits
Forensic anthropology population data
url http://www.sciencedirect.com/science/article/pii/S2665910722000196
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