本文采用了1:R配比病例-对照分析方法研究脑动脉炎的病因。病例选择了湖北汉川县1982年10月～1983年12月临床确诊的脑动脉炎病人,无钩端螺旋体菌苗接种史,一个病例分别配1个和3个对照。对照是选择在病例住家周围的健康人,均无钩端螺旋体菌苗接种史。配对根据同一自然村,同性别,对照者年龄与病例年龄相差不超过2岁。病例与对照均从静脉采血进行钩端螺旋体显凝试验。研究结果表明:脑动 In this paper, 1: R matching case-control analysis of the etiology of cerebral arteritis. Case selection of Hanchuan County, Hubei Province from October 1982 to December 1983 clinically diagnosed patients with cerebral arteritis, non-Leptospirosis vaccination history, one case with 1 and 3 control. The control was chosen healthy people around the patient in the case, no history of leptospirosis vaccine inoculation. Paired according to the same natural village, same sex, control and the age of the case no more than 2 years of age. Cases and controls were collected from venous blood leptospiral coagulation test. The results show that: brain activity