病例对照研究(case-controlstudy)在临床研究设计方案中属于非试验性研究方法。又称为回顾性研究(ret rospectivestudy)、病例比较研究(casecomparedstudy),但病例对照研究不同于临床通常所指的一般回顾性研究,它有自己独特的研究特点,因此不能将两者混为一谈。它是通过病例与 Case-control studies are non-experimental methods of clinical research design. Also known as the retrospective study (ret rospectivestudy), case comparison study (casecomparedstudy), but the case-control study is different from the general clinical review of the general review, it has its own unique characteristics of the study, it can not be confused with the two. It is through cases