title: The Accuracy of Sex Estimation on Metatarsal Bones in a Northeastern Thai Population.
abstract: BACKGROUND
  This study was carried out to evaluate the accuracy of sex estimation by discriminant analysis and stepwise discriminant analysis equations generated from metatarsal bones in a Thai population.
  
  
  METHODS
  The testing samples utilized in this study consisted of 50 skeletons (25 males and 25 females) obtained from the Khon Kaen University Skeletal Collection, Department of Anatomy, Faculty of Medicine, Khon Kaen University. Seven measurements of metatarsal bones were measured in centimeters, using either a mini-osteometric board (MOB) or a sliding caliper. The values measured from the Khon Kaen Skeletal Collection were used to determine the accuracy and applicability of sex determination, as predicted by Y1-Y6 equations which were generated from a Chiang Mai Skeletal Collection.
  
  
  RESULTS
  The percentage of sex determination accuracies predicted from the Y1-Y6 equations demonstrated accuracy rates of 80-95.6.
  
  
  CONCLUSIONS
  The Chiang Mai sex determination equations, generated from metatarsal bones by discriminant analysis (Y1-Y3) and stepwise discriminant analysis (Y4-Y6), demonstrated high accuracy rates of prediction, suggesting that these equations may be useful for sex determination within the Thai population.
authors.affiliation: Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
authors.forename: M
authors.initials: M
authors.lastname: Phatsara
authors.affiliation: Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, 56000, Malaysia.
authors.forename: S
authors.initials: S
authors.lastname: Das
authors.affiliation: Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Laowatthanaphong
authors.affiliation: Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
authors.forename: P
authors.initials: P
authors.lastname: Tuamsuk
authors.affiliation: Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand - Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, 50200, Thailand.
authors.forename: P
authors.initials: P
authors.lastname: Mahakkanukrauh
mesh_terms: D000071298:Body Remains; D016002:Discriminant Analysis; D005260:Female; D018732:Forensic Anthropology / Q000379:methods*; D006801:Humans; D008297:Male; D008682:Metatarsal Bones / Q000033:anatomy & histology*; D054881:Sex Determination by Skeleton / Q000379:methods*; D013785:Thailand
keywords: Foot; Metatarsal bones; Sex determination; Thailand