中文摘要：

目的：运用聚类分析研究广泛性焦虑症的中医证候学规律。方法：2009年8月1日至2010年7月31日,在北京地区10家分中心进行了为期1年、705例广泛性焦虑症患者的中医证候学观察,通过专家组指导,运用聚类分析方法分析广泛性焦虑症的中医证候学规律。结果：运用聚类分析提取了8个证候类型,分别为肝郁化火、肾精亏虚、心胆气虚、心血亏虚、气血两虚、痰湿困脾、阴阳两虚、气郁血瘀。结论：聚类分析在挖掘中医证候规律等方面具有一定的应用前景,适合应用于中医证候规律的研究。

英文摘要：

Objective： To analyze the rule of traditional Chinese medicine syndrome of generalized anxiety disorder（GAD） by cluster analysis. Methods： The syndrome of 705 GAD patients were investigated in 10 hospitals in Beijing within 1 year from August 1st, 2009 to July 31th, 2010, and cluster analysis was used to analyze the syndrome discipline of generalized anxiety disorder. Results： 8 syndromes of GAD was extracted by cluster analysis, such as depression of the liver generates pathogenicfire, deficiency of kidney-essence, type of deficiency of heart and gallbladder, insui ciency of the blood of the heart, deficiency of both qi and blood, accumulation of phlegm-wetness in the body, deficiency of both yin and yang, depressed qi lead to blood stasis. Conclusion： Cluster analysis has certain application prospect in excavating the rule of TCM syndrome, and it is suitable for the research of syndrome discipline.