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间接比较和多种干预措施比较的方法学及应用 被引量:14

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摘要 基于严格设计随机对照试验(RCTs)的直接比较(direct comparison)或称为头对头比较(head to head comparison)的系统评价,已被公认为是评价干预措施疗效的最高级别证据,称之为传统系统评价.但是,如果想进行一个系统评价,目的是比较两种干预措施A vs B的效果,但目前的RCTs没有两者的直接比较研究,却都有同干预措施C的比较(即A vs C和B vs C),此时,可以将C作为公共比较组,借助间接比较方法得出A vs B的效果,或者虽然有直接比较研究证据,但这些研究数量较少或质量较低,此时也可以用间接比较证据进行补充.
出处 《中国循证儿科杂志》 CSCD 2011年第6期456-459,共4页 Chinese Journal of Evidence Based Pediatrics
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