摘要
分组变量和结局变量均为二分类变量的研究在医学研究中是比较常见的,结局变量表示为二分类的形式,研究者通常采用频数、百分比或比例等统计指标描述,相应的统计推断方法主要为χ2检验或两变量之间的关联性分析。对这类研究文献进行meta分析,需要考虑几种不同的情况。文章主要针对结局变量为二分类变量且分组变量也为二分类变量的几种不同条件下meta分析中标准化均差效应量的近似估计进行讨论。
Grouping variable and outcome variable measured in dichotomous form are common in medical studies. When outcome variable is measured in the dichotomous form, the descriptive indices are often indicated for frequencies, percentages or proportions, correspondingly, the statistical inference methods are mainly X^2 test or the two-variable relationship analysis. When the meta-analysis for the categories studies is carried out, there are some different citations considered. In this paper, we discussed the estimation of the standardized mean difference effect size statistical in the meta-analysis.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2008年第26期5144-5145,共2页
Journal of Clinical Rehabilitative Tissue Engineering Research
