Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway.
Department of Orthodontics and Dento-Facial Orthopedics, Lebanese University, Beirut, Lebanon.
Int J Legal Med. 2019 Jul;133(4):1177-1189. doi: 10.1007/s00414-018-1959-5. Epub 2018 Nov 1.
We have created the tool BioAlder as an age prediction model based on the systems Greulich and Pyle (hand) and the Demirjian's grading of the third molar tooth. The model compiles information from studies representing a total of 17,151 individuals from several parts of the world. The model offers a solution where issues as group-wise data format and age mimicry bias are bypassed. The model also provides a solution for combining the two grading systems, hand and tooth, to one combined age prediction result assuming independency. We have tested our model of age prediction and the independency assumption on a separate data set from Lebanon with 254 young individuals. The prediction intervals of BioAlder covered most of the data points; however, we observed some outliers. Our analyses indicate at least a weak dependency between the two methods.
我们创建了一个名为 BioAlder 的工具，作为基于 Greulich 和 Pyle（手部）系统和 Demirjian 第三磨牙分级的年龄预测模型。该模型汇总了来自世界各地的总共 17151 个人的研究信息。该模型提供了一种解决方案，可以避免群组数据格式和年龄模拟偏差等问题。该模型还提供了一种解决方案，用于将手部和牙齿这两种分级系统结合起来，假设它们是独立的，得出一个综合的年龄预测结果。我们已经在来自黎巴嫩的一个包含 254 名年轻人的独立数据集上测试了我们的年龄预测模型和独立性假设。BioAlder 的预测区间涵盖了大部分数据点，但我们观察到了一些异常值。我们的分析表明，这两种方法之间至少存在一定的弱相关性。
