CHN与CHN05两种骨龄评价标准在法医学骨龄推测中的对比研究

Comparative study between CHN and CHN05 bone age evaluation criteria in forensic bone speculations

目的：比较以不同骨龄标准所评价的青少年手腕骨骨龄与生活年龄的差异,为当代法医学提供一种更精确的推测年龄的方法。方法：随机抽取360名（男198,女162）12～18岁生长发育正常的青少年,按CHN法和CHN05法骨龄标准评价手腕部X线片骨龄,并对不同方法评价的骨龄及生活年龄进行统计学分析。结果：在男12～16.5岁、女12～14.5岁之间,CHN骨龄减生活年龄之差值分别为0.33～0.99岁和0.53～1.15岁（P〈0.01）;CHN05骨龄减生活年龄的差值分别为-0.25～0.20岁和-0.28～0.06岁（P〉0.05）。在男17～18岁、女15～17岁之间,CHN骨龄减生活年龄的差值分别为-0.53～-1.07岁和-0.12～-1.14岁（P〈0.05）,CHN05骨龄减生活年龄的差值分别为-0.32～-0.56岁和-0.24～-0.81岁（P〈0.05）。结论：CHN法骨龄小于生活年龄,在大部分年龄组CHN05骨龄与生活年龄基本一致。

Objective：To compare the difference between wrist bone age and living age in the adolescent by different standards of bone age,and to provide a more accurate method of speculating age for contemporary forensic. Methods：Three hundred and sixty from 12 years old to18 years old（198 male,162 female） normal growth and development adolescents were collected randomly in which bone age of wrist X-ray were evaluated by CHN and CHN05 methods,and bone age and living age were analyzed statistically. Results：In male 12 to male 16.5 years old and female 12 to male 14.5 years old,the difference of CHN bone age minus living age were respectively 0.33～0.99 years old and 0.53～1.15 years old（P0.01） ,the difference of CHN05 bone age minus living age were respectively-0.25～0.20 years old and-0.28～0.06 years old（P0.05） .In male 17 to male 18 years old and female 15 to male 17 years old,the difference of CHN bone age minus living age were respectively-0.53～-1.07 years old and-0.12～-1.14 years old（P0.05） ,the difference of CHN05 bone age minus living age were respectively-0.32～-0.56 years old and-0.24～-0.81 years old（P0.05） . Conclusion：Bone age is less than living age in CHN method,but CHN05 bone age and living age are basically the same in mainly age groups.