Reliability of age estimation from iliac auricular surface in a subactual Chilean sample.
The aim of this study was to test the reliability of Osborne et al. (2004) [8] age estimation based on the iliac auricular surface of the ilium. We selected 172 skeletons with documented sex and age-at-death and established six uniformly distributed age intervals for analysis. ANOVA was employed to assess the association of the documented age with sex and the auricular surface classification. We employed Bonferroni post-hoc tests to find any statistical differences across documented ages within each phase of Osborne's criteria. While the ANOVA showed a significant association between the documented age and the auricular surface classification, post-hoc tests found that phases 2 and 3 were the only consecutive phases with significant differences. We argue that a lack of statistical significance between consecutive phases undermines the reliability of this method for forensic purposes especially in middle adults. It may be possible that the collapse of intermediate phases would increase the accuracy of this method.
Departamento de Arqueología, Facultad de Ciencias Sociales, Universidad Alberto Hurtado, Almirante Barroso 10, Santiago, Chile. Electronic address: majo.hersot@gmail.com.
María José
MJ
Herrera
Departamento de Antropología, Facultad de Ciencias Sociales, Universidad de Chile, Av. Ignacio Carrera Pinto 1045, Santiago, Chile. Electronic address: roretama@uchile.cl.
Rodrigo
R
Retamal
D000328:Adult; D000365:Age Determination by Skeleton / Q000379:methods*; D000368:Aged; D000704:Analysis of Variance; D002677:Chile; D005260:Female; D018732:Forensic Anthropology; D006801:Humans; D007085:Ilium / Q000033:anatomy & histology*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D055815:Young Adult
Age estimation; Auricular surface; Chile; Forensic Anthropology Population Data