Liu Q
Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-2794, USA.
Biometrics. 1998 Sep;54(3):1147-54.
This paper presents a new test procedure for detecting trend in ordered 2 X K tables. Using an order-directed score statistic, the procedure does not require a set of scores preassigned to the ordinal categories under consideration. Thus the problem of varying p-values of linear rank tests, due to choices of different scoring systems, is avoided. The proposed test procedure can be easily generalized to handle stratified analysis where data are represented by several 2 x K tables. Examples are given to illustrate the method.
本文提出了一种用于检测有序2×K列联表中趋势的新检验方法。该方法使用顺序导向得分统计量，无需预先为所考虑的有序类别指定一组得分。因此，避免了由于选择不同评分系统而导致的线性秩检验p值变化的问题。所提出的检验方法可以很容易地推广到处理分层分析，其中数据由几个2×K列联表表示。文中给出了示例来说明该方法。
