流行病学(英文)ppt课件

  • 发布时间:2012-04-21
  • 课件大小:237 KB
  • 所属栏目:医药类
  • 课件格式:.rar(压缩解压).ppt(使用格式)
  • 课件等级:流行病学(英文)ppt课件推荐等级为3星
  • 简略标题:流行病学(英文)
  • 应用环境:多媒体教学
  • 制作使用:PowerPoint
  • 应用阶段:预防医学

流行病学(英文)ppt课件介绍

流行病学(英文)ppt课件内容预览:MatchingInvestigate ExampleDesign of Case-Control StudiesData collection and analysisBiasTypes of DesignUnique contribution of epidemiology to the repertoire of clinical research designspptFirst case-control study performed in late 1950sDoll and Hill’s study of lung cancer and smoking behavior among physiciansJerome Cornfield’s classic description of “Retrospective Studies”New statistical tools were developed to analyze the study design - logistic regressionHistorical PerspectiveIntroductionDefinitionA case-control study is a design in which individuals with an event or condition of interest, CASES, are identified and then compared with regard to one or more exposures to individuals without the event or condition of interest, CONTROLS. Case-control investigations typically are designed to assess the association between occurrence of disease and an exposure suspected of causing (or preventing) that disease.IntroductionabcdCasesControlsDirection of inquiryExposedExposedUnexposedUnexposeda(a+c)b(b+d)IntroductionTypesFamily of epidemiological study designsTraditional case-control designCase-control studies within cohortsNested case-control study designCase-cohort study designCase-parent study designCase-only study designIntroductionMatchingSummarizeTypesProblems with MatchingMatching is defined as the process of selecting controls so that they resemble the cases with regard to certain characteristicsThe goal of matching is to create similar distributions between cases and controls with regard to certain characteristicsMatching can be used to

课件关键字:流行病,流行

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