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采用病例对照与多因素分析相结合的方法，调查了３１９例无症状性脑梗塞患者和３１９例对照者，研究无症状性脑梗塞发生的危险因素。条件Ｌｏｇｉｓｔｉｃ回归分析提示，职业、舒张压的增高、体重指数（ｋｇ／ｍ２）、饮食习惯、饮酒指数对该疾病发生的作用无相关性（Ｐ＞０．０５），无症状性脑梗塞发生的主要危险因素依次为单纯收缩期高血压，血粘度增高、冠心病、吸烟指数、脾气暴躁及易激动、糖尿病。结果表明，无症状性脑梗塞的发生是多种因素单独作用和交互作用的结果。单纯收缩期高血压是首位危险因素。
Using a combination of case-control and multivariate analysis, 319 asymptomatic cerebral infarction patients and 319 control subjects were investigated to study the risk factors for asymptomatic cerebral infarction. Logistic regression analysis showed that there was no correlation between occupational and diastolic blood pressure, body mass index (kg / m2), diet and alcohol index (P> 0.05), asymptomatic cerebral infarction The main risk factors followed by simple systolic hypertension, increased blood viscosity, coronary heart disease, smoking index, irritability and irritability, diabetes. The results show that asymptomatic cerebral infarction is the result of a variety of factors alone and interaction. Isolated systolic hypertension is the first risk factor.