基于决策树预测糖尿病合并冠心病患病风险的中医人格体质特征研究

目的 探讨中医人格及体质特征对糖尿病（MD）合并冠心病（CHD）的患病风险预测作用。方法 采用五态人格测验、五五体质检测测定110例T2MD患者的中医人格及体质特征；运用EXCEL及SPSS中决策树的CHAID算法，建构中医人格、体质类型预测MD患者合并CHD的患病风险模型，并对模型的预测准确性加以评估。结果 以少阴人格、阴寒质、血瘀质为预测变量构建的MD患病风险模型经10折交叉验证预测准确度为93.6%，准确率较高，并得到3条预测冠心病患病风险的规则。结论 以中医人格及体质特征预测MD合并CHD的风险规则符合中医传统认识，对高危人群的早期筛查、冠心病的防治及临床辨体论治提供了参考依据。 

Study on TCM Physical Personality and Constitution Based on Diabetes Mellitus Complicated with Coronary Heart Disease Risks Predicted by Decision Tree Model

OBJECTIVE To study the prediction effect of TCM physical personality and constitution on the risks of MD complicated with CHD. METHODS TCM physical personality and constitution of 110 T2MD patients were tested by five pattern personality inventor and five-five constitution. CHAID model of decision tree in EXCEL and SPSS was used to establish disease risk model of MD complicated with CHD predicted by TCM personality and constitution types. And the prediction accuracy of the model was evaluated. RESULTS Tested by cross validation， the prediction accuracy of MD disease model established with the Shao-yin personality， Yin-cold constitution and blood-stasis constitution as the predictor variables was relatively higher (93.6%)， and three rules for predicting CHD risk were obtained. CONCLUSIONS The prediction rules of the MD complicated with CHD by TCM personality and constitution are consistent with the traditional understanding of Chinese medicine， which provides a reference for high-risk population's early screening， CHD prevention and treatment， clinical differentiation and treatment.