摘要:
Objective To investigate the prevalence and cardiovascular risk factors of silent brain infarct (SBI) in Shunyi Cohort.Methods This study was based on the population based Shunyi Study in China.One thousand and twenty-seven stroke-free participants older than 35 years,who completed cerebral MRI,were included.Cardiovascular risk factors were assessed by interview,physical examination and blood sample tests.SBI was evaluated on 3D-T1WI,T2WI and FLAIR sequences.Associations between risk factors and SBI were analyzed by Logistic regression and adjusted for age,sex,and relevant confounders.Results One thousand and twenty-seven participants,aged (55.9 ± 9.4) years,37.7% male,were assessed.One hundred sixty-four participants(16.0%) had SBI on MRI.The prevalence of SBI increased by age (every 10 years,OR=2.12,95% CI 1.74-2.58,P<0.01).Hypertension(OR =2.67,95% CI 1.77-4.04,P<0.01),diabetes(OR=2.48,95% CI 1.64-3.76,P<0.01) and smoking(OR=1.98,95% CI 1.08-3.62,P =0.028) were significantly associated with SBI.Conclusions The prevalence of SBI in this Chinese population is 16.0%,which increases with age.Hypertension,diabetes and smoking are associated with SBI.%目的 调查社区人群无症状性脑梗死(silent brain infarct,SBI)的患病现状及危险因素.方法 自2013年6月至2016年4月共纳入北京市顺义地区大孙各庄镇5个自然村中年龄≥35岁、无卒中史且完成头颅MRI检查的居民1 027名.通过调查问卷、体格检查及实验室检查采集血管病相关危险因素的资料.采用3.0T场强的MRI技术,以3D-T1WI、T2 WI、FLAIR等序列对受试者进行检查,评估SBI患病率及分布情况,使用Logistic回归分析SBI的危险因素.结果 1027名入选者中,37.7%(387名)为男性,年龄(55.9±9.4)岁.164例(16.0%)存在SBI.年龄增加(每增加10岁,OR =2.12,95% CI1.74~2.58,P<0.01)、高血压(OR=2.67,95% CI 1.77~4.04,P<0.01)、糖尿病(OR=2.48,95% CI 1.64 ~3.76,P<0.01)及吸烟(OR=1.98,95% CI 1.08 ~3.62,P=0.028)是SBI的独立危险因素.结论 SBI在顺义社区人群中患病率为16.0%.SBI与年龄增加、高血压、糖尿病、吸烟相关.