荟萃分析,又称“Meta分析”,Meta意指较晚出现的更为综合的事物,而且通常用于命名一个新的相关的并对原始学科进行评论的学问,不但包括数据结合,而且包括结果的流行病学探索和评价,以原始研究的发现取代个体作为分析实体。荟萃分析产生的主要的理由是:对于多个单独进行的研究而言,许多观察组样本过小,难以产生任何明确意见。
现国际上已公认,大样本随机对照试验(randomizedcontrolledtrials,RCT)和联合多个RCT的荟萃分析(Meta分析)或系统评价(systematicre-view,SR)是指导临床实践最可靠的研究依据犤2犦。
基于188个网页-相关网页
Results: 9RCTs were included in the Meta analysis, which mean quality score was 7.6 ± 0.6.
结果:9项RCT纳入荟萃分析,平均质量评分7.6±0.6分。
参考来源 - 腹腔镜辅助直肠癌根治术可行性的临床研究This meta-analysis included 6645 cases, 6768 controls and 4168 families, covering 20 single nucleotide polymorphisms (SNPs).
我们的荟萃分析纳入了到2007年6月的32个关联研究,包含6645个病例,6768个正常对照,以及4168个三口之家,总共包含20个SNP。
参考来源 - 精神分裂症易感位点的关联分析和荟萃分析·2,447,543篇论文数据,部分数据来源于NoteExpress
只有当许多研究结合在一起进行荟萃分析时,心灵感应的微弱信号才会真正显现出来。
Only when many studies are combined in a meta-analysis will the faint signal of telepathy really become apparent.
即将发表在杂志上的一篇荟萃分析可以作为发现男女数学能力没有显著差异的证据之一。
A meta-analysis to be published in the journal can be added to the pile of evidence that finds no significant gender difference in mathematical ability.
另外,运用分组荟萃分析和元回归分析探讨异质性的根源。
Sources of heterogeneity were explored through subgroup meta-analyses and meta-regression.
It wasn't actually a study itself on the Mediterranean Diet, but it was a review of other studies that had been done using this statistical technique called meta-analysis.
该研究本身并不直接研究地中海式饮食法,而是运用荟萃分析的统计方法,对其它已有的相关研究进行研究
What this is, is you take a group of studies on an issue, you pool them all together, and then you weight studies differently depending on factors like how large they were, how good their methods were, and then you come out with overall estimates about the impact of something, in this case the Mediterranean Diet, on health outcomes.
所谓荟萃分析就是将某一问题的一组研究,汇总起来,并根据某些因素,赋予这些研究不同的权重,如基于研究的大小,研究方法的好坏等,然后得出关于某事物的影响的总体评估,在地中海式饮食中就是指健康结果
应用推荐