Green M A, Wright J C
Forensic Sci Int. 1985 May;28(1):35-46. doi: 10.1016/0379-0738(85)90163-x.
One of the most consistently used methods of postmortem interval estimation (PMIE) is by means of body temperature measurements. Several variations of this method exist, from simple 'rules of the thumb' to quite complex equations requiring a knowledge of body mass and height. All of these methods employ a certain degree of approximation and perhaps the use of standard values and tables, and all of them are susceptible to some degree of error. The present study, at the Department of Forensic Medicine, Leeds, was initiated by the Home Office to investigate the extent of the errors which might be encountered in the use of these methods, and to devise a more simple and accurate method. The method devised is called the time-dependent-z equation, for purely theoretical reasons. It will be referred to as the TDZE method. The TDZE method requires the measurement of two rectal temperatures, about 1 h apart, a little mental arithmetic and reference to a single standard curve. The method is valid for all bodies, obese or emaciated, clothed or naked, in all environmental conditions, without modification. Results of the use of the method on data collected from 67 coroner's cases compare favourably with the results obtained by the use of other methods on the same data.
死后间隔时间估计（PMIE）最常用的方法之一是通过测量体温。该方法有多种变体，从简单的“经验法则”到需要了解体重和身高的相当复杂的方程式。所有这些方法都采用了一定程度的近似值，可能还使用了标准值和表格，并且它们都在某种程度上容易出现误差。利兹法医系的这项研究由内政部发起，旨在调查使用这些方法可能遇到的误差程度，并设计出一种更简单、准确的方法。出于纯粹的理论原因，所设计的方法被称为时间相关z方程。将其称为TDZE方法。TDZE方法需要测量两个直肠温度，间隔约1小时，进行一些心算并参考一条标准曲线。该方法适用于所有尸体，无论肥胖或消瘦、穿着衣服或裸体，在所有环境条件下均无需修改即可使用。将该方法应用于从67例验尸官案件收集的数据的结果，与对相同数据使用其他方法获得的结果相比具有优势。
