Joubert Laurette C, Briers Nanette, Meyer Anja
School of Anatomical Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, 2193, South Africa.
J Forensic Sci. 2020 Jan;65(1):37-45. doi: 10.1111/1556-4029.14180. Epub 2019 Sep 4.
To address problems of reproducibility related to current age estimation methods, the enhanced computational Methods (ECM) were previously developed using a sample of white North American male pubic symphyses and showed promise in improving current techniques. However, given the evidence of sex and population differences in the onset of age markers, this study set out to test the ECM on a white South African sample. The sample consisted of 184 well-preserved os coxae from individuals of known age and sex. Pubic symphyseal surfaces were scanned using the Artec Spider 3D scanner, processed using Artec Studio 10 and analyzed using forAge. Point estimates of age were then compared to the true age of each individual. Results indicate that the ECM performed poorly in a white South African population, with consistent underestimation of age-at-death and weak positive correlations with true age. Despite the low correlations, the ECM did, however, reduce observer error.
为解决与当前年龄估计方法相关的可重复性问题，之前利用北美白人男性耻骨联合样本开发了增强计算方法（ECM），该方法在改进现有技术方面显示出前景。然而，鉴于有证据表明年龄标志物出现存在性别和人群差异，本研究着手在南非白人样本上测试ECM。样本包括来自已知年龄和性别的个体的184块保存完好的髋骨。使用Artec Spider 3D扫描仪扫描耻骨联合表面，使用Artec Studio 10进行处理，并使用forAge进行分析。然后将年龄的点估计值与每个个体的真实年龄进行比较。结果表明，ECM在南非白人人群中表现不佳，一致低估死亡年龄，且与真实年龄的正相关性较弱。尽管相关性较低，但ECM确实减少了观察者误差。
