title: [Accuracy of age estimation in 14-year-old females by two skeletal age standards].
abstract: OBJECTIVE
  To study the accurate of Li Guozhen's Percent Numeration and the Development Standard of Chinese Wrist Bone CHN Numeration of age estimation in 14-year-old females.
  
  
  METHODS
  Fifty-one 14-year-old females from three middle schools in Loudi City in Hunan were selected randomly, whose left wrists were photographed with X-rays under the same condition. Skeletal age was estimated following the two numerations. The two skeletal ages were compared with each other and with chronological age.
  
  
  RESULTS
  The skeletal age from Percent Numeration and CHN Numeration have no significance difference, P > 0.05. And the skeletal ages of the two Numerations have no significance difference either, P > 0.05.
  
  
  CONCLUSIONS
  The Percent Numeration and the CHN Numeration are still suited for age estimation in 14-year-old females.
authors.affiliation: Department of Forensic Medicine, Medical College, Xi'an Jiaotong University, Xi'an 710061, China. forensicxu@126.com
authors.forename: Yong-Cheng
authors.initials: YC
authors.lastname: Xu
authors.forename: Long-Yu
authors.initials: LY
authors.lastname: Ye
authors.forename: Kai
authors.initials: K
authors.lastname: Li
authors.forename: Zhen-Yuan
authors.initials: ZY
authors.lastname: Wang
authors.forename: Yong
authors.initials: Y
authors.lastname: Ke
authors.forename: Qin-Chu
authors.initials: QC
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000365:Age Determination by Skeleton / Q000379:methods*; D000367:Age Factors; D015992:Body Mass Index; D002348:Carpal Bones / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D002681:China; D005260:Female; D018732:Forensic Anthropology / Q000379:methods*; D050276:Hand Bones / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006801:Humans; D050279:Metacarpal Bones / Q000000981:diagnostic imaging; D012016:Reference Values