title: Recalibration of the Klales et al. (2012) method of sexing the human innominate for Mexican populations.
abstract: OBJECTIVE
  The aim of this study was to test the accuracy of the Klales et al. (2012) equation for sex estimation in contemporary Mexican population.
  
  
  METHODS
  Our investigation was carried out on a sample of 203 left innominates of identified adult skeletons from the UNAM-Collection and the Santa María Xigui Cemetery, in Central Mexico. The Klales' original equation produces a sex bias in sex estimation against males (86-92% accuracy versus 100% accuracy in females). Based on these results, the Klales et al. (2012) method was recalibrated for a new cutt-of-point for sex estimation in contemporary Mexican populations.
  
  
  CONCLUSIONS
  The results show cross-validated classification accuracy rates as high as 100% after recalibrating the original logistic regression equation. Recalibration improved classification accuracy and eliminated sex bias. This new formula will improve sex estimation for Mexican contemporary populations.
authors.affiliation: Posgrado en Antropología Física, Escuela Nacional de Antropología e Historia, Periférico Sur y Zapote S/N, Colonia Isidro Fabela, Distrito Federal, Tlalpan, 14030, México.|Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México. Circuito Interior, Ciudad Universitaria, Distrito Federal, Coyoacan, 04510, México.
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Gómez-Valdés
authors.affiliation: Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México. Circuito Interior, Ciudad Universitaria, Distrito Federal, Coyoacan, 04510, México.
authors.forename: Antinea
authors.initials: A
authors.lastname: Menéndez Garmendia
authors.affiliation: Posgrado en Antropología Física, Escuela Nacional de Antropología e Historia, Periférico Sur y Zapote S/N, Colonia Isidro Fabela, Distrito Federal, Tlalpan, 14030, México.|Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México. Circuito Interior, Ciudad Universitaria, Distrito Federal, Coyoacan, 04510, México.
authors.forename: Lizbeth
authors.initials: L
authors.lastname: García-Barzola
authors.affiliation: Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México. Circuito Interior, Ciudad Universitaria, Distrito Federal, Coyoacan, 04510, México.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Sánchez-Mejorada
authors.affiliation: Escuela Nacional de Antropología e Historia, Periférico Sur y Zapote S/N, Colonia Isidro Fabela, Distrito Federal, Tlalpan, 14030, México.
authors.forename: Carlos
authors.initials: C
authors.lastname: Karam
authors.affiliation: Equipo Peruano de Antropología Forense, Rodolfo Rutte 670, Magdalena del Mar, Lima 17, Perú.
authors.forename: José Pablo
authors.initials: JP
authors.lastname: Baraybar
authors.affiliation: Forensic Anthropology Program, Department of Sociology and Anthropology, Washburn University, Topeka, Kansas, 66621.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Klales
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000885:Anthropology, Physical / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008800:Mexico; D008875:Middle Aged; D015233:Models, Statistical; D010384:Pelvic Bones / Q000033:anatomy & histology*; D015203:Reproducibility of Results; D054881:Sex Determination by Skeleton / Q000379:methods*; D055815:Young Adult
keywords: Phenice traits; nonmetric sex estimation; pelvis; visual sex estimation