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Age Estimation Using Thoracic and First Two Lumbar Vertebral Ring Epiphyseal Union

NCJ Number
230707
Journal
Journal of Forensic Sciences Volume: 55 Issue: 2 Dated: March 2010 Pages: 287-294
Author(s)
Midori Albert, Ph.D.; Dawn Mulhern, Ph.D.; Melissa A. Torpey, M.S.; Edward Boone, Ph.D.
Date Published
March 2010
Length
8 pages
Annotation
Union of the vertebral centra or "ring" epiphyses occurs during adolescence and early adulthood, providing valuable age at death information. This article presents a system for estimating age based on the timing and pattern of vertebral ring union.
Abstract
Data from 57 known individuals aged 14-27 years were used to establish age ranges for various patterns of union in females and males. Female age ranges were more well defined with less overlap in patterns of union than male age ranges. The age ranges are accompanied by descriptions of the stages of union observed that aid in applying this method. A test of interobserver error in scoring stages of union demonstrated strong consistency among three observers (r = 0.91-0.97). Estimating age by observing all stages documented resulted in 78 percent, 88 percent, and 100 percent accuracies using vertebral data alone. The authors encourage the continued use of this method, in conjunction with other age indicators. Tables, figures, and references (Published Abstract)

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