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Estimation of age at death from the pubic symphysis and the auricular surface of the ilium using a smoothing procedure
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Orientador(es)
Resumo(s)
"We discuss here the estimation of age at death from two indicators (pubic symphysis and the
sacro-pelvic surface of the ilium) based on four different osteological series from Portugal, Great-
Britain, South Africa or USA (European origin). These samples and the scoring system of the two
indicators were used by Schmitt et al. (2002), applying the methodology proposed by Lucy et al.
(1996). In the present work, the same data was processed using a modification of the empirical method
proposed by Lucy et al. (2002). The various probability distributions are estimated from training data
by using kernel density procedures and Jackknife methodology. Bayes's theorem is then used to
produce the posterior distribution from which point and interval estimates may be made. This
statistical approach reduces the bias of the estimates to less than 70% of what was obtained by the
initial method. This reduction going up to 52% if knowledge of sex of the individual is available, and
produces an age for all the individuals that improves age at death assessment."
Descrição
NOTICE: this is the author’s version of a work that was accepted for publication in Forensic Science International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forensic Science International, Vol 219, Issue 1-3, (2012). DOI: 10.1016/j.forsciint.2011.11.031
Palavras-chave
Age estimation Bone indicators Empirical bayes Human aging variability Density estimation Kernel estimation
Contexto Educativo
Citação
Forensic Sci Int. 2012 Jun 10;219(1-3):287.e1-7. doi: 10.1016/j.forsciint.2011.11.031