德尔菲法确定血瘀证证候特征要素权重系数的研究

目的确定血瘀证证候各特征要素所占的权重，为中医血瘀证证候的诊断与疗效评定标准提供参考。方法采用德尔菲（Delphi）法。编制血瘀证入选指标专家咨询问卷，向全国20位专家发送，回收的资料使用Epidata3．0版软件建立数据库，运用SAS9．2统计软件进行均数和变异系数的统计描述和X2检验。结果回收有效问卷20份，专家积极系数为100％，平均权威系数为0．86，协调系数为0．507（x2=284．494,P〈O．001），确定了血瘀证证候各特征要素所占的权重。结论确定血瘀证常见证候特征有18种，并可为制定中药新药临床试验的中医血瘀证证候的诊断与疗效评定标准的参考。

Application of Delphi Method for Defining Weights of the Main Characteristics in Blood Stasis Syndrome

Objective To define the weights of 34 characters in blood stasis syndrome by Delphi method. Methods The Delphi method was used to define the weights. The characteristics questionnaires of blood stasis syndrome were send to twenty specialists all over the country. Epidata 3.0 software was used to set up database. The mean,variation coefficient and .）（2 test were used in statistics by SAS 9.2. Results There were 20 questionnaires retrieved. The specialist active coefficient was 100~/0. The average of authority coefficients was 0.86. The concordance coefficient was 0. 507 （~（~ ： 284. 494, P（O. 001）. The weights of 34 characters in blood stasis syndrome were defined. Conclusion The weighs of 18 main characteristics defined by Delphi method in blood stasis syndrome were more credi- bility and formed an important basis for diagnosing and evaluating blood stasis syndrome in clinical trials.