Winek C L, Murphy K L, Winek T A
Forensic Sci Int. 1984 Aug;25(4):277-81. doi: 10.1016/0379-0738(84)90077-x.
Of approximately 5,000 forensic cases with a positive ethanol result, over 1,000 were available in which both blood and urine were present for comparison of ethanol content. Data were examined for calculation of the urine to blood ethanol concentration ratio, with the intent of evaluating the validity of predicting a blood ethanol level given a urine ethanol level. The overall urine to blood ethanol concentration ratio was 1.57:1 with a range of 0.7 to 21.0:1. The extremely wide range of values implies that a large degree of error would be introduced if a mean ratio was used when predicting a blood ethanol level from a urine ethanol level.
在大约5000例乙醇检测结果呈阳性的法医案件中，有1000多例同时提供了血液和尿液样本用于乙醇含量比较。对数据进行分析以计算尿液与血液乙醇浓度比值，目的是评估根据尿液乙醇水平预测血液乙醇水平的有效性。尿液与血液乙醇浓度的总体比值为1.57:1，范围在0.7至21.0:1之间。如此大的取值范围意味着，如果根据尿液乙醇水平预测血液乙醇水平时使用平均比值，将会引入很大程度的误差。
