文章摘要
冯子健,李克莉,金连梅,倪大新,许真,王英.脑卒中高危人群筛检手段的多中心前瞻性研究与评价[J].中华流行病学杂志,2008,29(2):105-109
脑卒中高危人群筛检手段的多中心前瞻性研究与评价
Multiple center collaborative research on high risk population screening measure
投稿时间:2007-10-25  修订日期:2012-06-06
DOI:
中文关键词: 脑卒中;高危人群;队列研究;筛检试验
英文关键词: stroke;High risk population;Cohort study;Screening test
基金项目:国家"十五"科技攻关滚动课题资助项目(2004BA703B12)
作者单位
冯子健 中国疾病预防控制中心疾病控制与应急处理办公室,北京,100050 
李克莉 中国疾病预防控制中心疾病控制与应急处理办公室,北京,100050 
金连梅 中国疾病预防控制中心疾病控制与应急处理办公室,北京,100050 
倪大新 中国疾病预防控制中心疾病控制与应急处理办公室,北京,100050 
许真 山东省泰安市疾病预防控制中心 
王英 中国疾病预防控制中心病毒病预防控制所 
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中文摘要:
      目的 验证脑血管血液动力学综合积分筛检脑卒中高危个体的效能及其作为预测因子的相对危险度.方法 在北京、上海、唐山和福州市共设立5个中心,以整群的方法抽取人群中年龄≥40岁的人群作为目标人群,选择既往无脑卒中病史者作为研究对象,进行脑卒中危险因素基线调查、脑血管血液动力学检测、脑卒中发病随访.结果 共随访48 481人年,随访过程中新发脑卒中182例,脑卒中发病3.75/1000人年.单因素分析结果显示,血液动力学积分值<75分的调整卒中相对危险度(RR)为9.3,且积分值降低与脑卒中RR值升高具有显著的剂量反应关系;多因素分析结果显示,血液动力学积分是进入Cox回归方程中最强的因素.筛检试验评价显示,血液动力学积分筛检卒中高危人群的敏感度、特异度、准确度、Youden指数分别为80.77%、67.55%、67.65%和0.48,受试者工作特征曲线下面积(AUC)为0.806.结论 脑血管血液动力学积分值是脑卒中最强的独立预测因子,筛检脑卒中高危人群具有良好的效能.
英文摘要:
      objective To validate efficacy of cerebrovascular hemodynamic synthesized score (CVHS)for scfeening high risk population of stroke and relative risk(RR)for predIcting stroke.Methods Participants aged≥40 years and free of stroke were cluster sampled from Beijing,Shanghai,Fuzhou and Tangshan city in 5 centers.Investigation of risk factors of stroke and examination of cerebrovascular hemodynamic were carried out during baseline,and stroke incidence was surveyed during follow up.26 690 peopie aged≥40 years were recruited,and 24 253 people agreed to participate(90.87%)with the effect as 23 741, Cerebral blood vessel analyzer (CBA) CV 300 was used to measure cerebrovascular hemodynamic synthesized index,including quantity of mean bloOd flow(Qmean),velocity of maximum blood flow(Vmax), velocity of minimus blood flow(Vmin), velocity of mean blOOd flow(Vmean), pulse wave Velocity(Wv),characteristic impedance of cerebrovascular net(Zcv),dilatation index(DI),resistance of Vascular(RV),development resistance(DR),capillary pressure(Cp), differential pressure(Dp).The CVHS was calculated by software according to the index measured directly.ResuIts There were 48 481 person-year f0110wed and 1 82 stroke incjdence occurred.Incidence of stroke was 3.75/1 000 person-vear in the mujtipie source people who aged≥40 years.Uni-variant analysis indicated that age and gender adjusted relative risk(RR)for stroke of low CVHS(<75)was 9.3,There was stronificant dosage response between CVHS and RR of stroke.Multiple(bx regression showed that CVHS was the strongest predictive factor.Screening test evaluation showed that sensitivity, specificity, accuracy and Youden index of CVHS for screening were 80.77%,67.55%,67.65%and O,48,respectively.The area under ROC curve(AUC) was 0.806.ConcIusion It seems that CVHS was the strongest and independent predictor of stroke and the efficacy for screening high risk population was also satisfactory.This kind of screening test could be an useful measure for preventing of the stroke occurrence.
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