本文着重讨论两类以上配对的行列表中比较两种方法优劣的问题,例如对强阳性、阳性的检出率方法1是否优于方法2。一、问题的提出:用流行指数和患病率两种指标把84个地区划分为地方性甲状腺肿大(以下简称地甲病)重病区、病区和非病区,(表1),试问哪一种方法较为敏感。 This article focuses on the comparison of the advantages and disadvantages of the two methods in the line lists of more than two types of pairings. For example, whether the method 1 for detection of strong positives or positives is better than method 2. First, the question is put forward: 84 areas are divided into severe wards, wards and non-endemic areas with endemic goiter (table 1) using the two indicators of epidemic index and prevalence rate. (Table 1) Which method is more sensitive.