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目的 探讨我国人群中出血性和缺血性脑卒中发病的相对比例。方法 1 991～ 2 0 0 0年按照世界卫生组织MONICA方案对我国 1 5组人群脑卒中事件进行监测。结果 1 996～ 2 0 0 0年 1 5组人群的CT检查率从 1 4 .8%～ 97.5 %不等 ,缺血性和出血性脑卒中的比例从 0 .37∶1～ 3 .82∶1不等 ,两者的相关系数为 0 .71 (P =0 .0 0 3)。在CT检查率达到 80 %以上的人群 ,缺血性与出血性脑卒中的比例无一例外 ,均 >1 .0。从 1 991～ 2 0 0 0年 ,1 0年间均有资料的 1 2组人群CT检查率从 41 .1 %增加到88 3 % ,缺血性与出血性脑卒中的比例则从 1 .2 5∶1增加到 1 .85∶1 ,两者的相关系数为 0 .77(P =0 0 1 )。经CT检查的病例中 ,无论任何一年缺血性与出血性脑卒中的比例均大于 1 .0。结论 我国人群中脑卒中发病是以缺血性脑卒中为主。CT检查率偏低是造成部分人群“出血性脑卒中发病为主”假象的主要因素。
Objective To investigate the relative proportion of hemorrhagic and ischemic stroke in Chinese population. Methods From 1991 to 2000, the stroke events in 15 Chinese population were monitored according to the MONICA program of World Health Organization. Results From 1986 to 2000, the CT examination rate in 15 groups varied from 14.8% to 97.5%, and the proportion of ischemic and hemorrhagic stroke ranged from 0.37: 1 to 3.82: 1, the correlation coefficient between the two was 0.71 (P = 0.030). In the CT examination rate of 80% or more of the crowd, the proportion of ischemic and hemorrhagic stroke without exception, were> 1.0. From 1990 to 2000, CT data of 12 groups of patients with data from 10 years increased from 41.1% to 88.3%, while the proportion of ischemic and hemorrhagic stroke increased from 1.2 5: 1 to 1.85: 1, the correlation coefficient between the two was 0.77 (P = 0 0 1). Of the CT-inspected cases, the proportion of ischemic and hemorrhagic strokes was greater than 1.0 in any given year. Conclusion The incidence of stroke in our population is mainly ischemic stroke. The low rate of CT examination is the main factor causing the illusion of “hemorrhagic stroke” in some people.