该文探讨山东省中西部地区25岁以上农村常住居民高血压的危险因素及高危人群。方法:采用多阶段分层随机抽样的方法,对该地区调查对象进行问卷调查、体格检查以及实验室检测。应用分类树(classi-fication and regression trees,ART)分析高血压人群的危险因素及高危人群。结果:共 This article explores the risk factors and high-risk groups of hypertension among rural residents over the age of 25 in central and western Shandong Province. Methods: A multi-stage stratified random sampling method was used to conduct questionnaires, physical examinations and laboratory tests on the surveyed subjects in this area. Application of classification trees (classi-fication and regression trees, ART) analysis of risk factors and high-risk groups in hypertensive population. Results: total