کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10513775 950923 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
GRADE guidelines: 13. Preparing Summary of Findings tables and evidence profiles-continuous outcomes
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی سیاست های بهداشت و سلامت عمومی
پیش نمایش صفحه اول مقاله
GRADE guidelines: 13. Preparing Summary of Findings tables and evidence profiles-continuous outcomes
چکیده انگلیسی
When studies use different measures of the same construct, calculating summary measures requires converting to the same units of measurement for each study. The longest standing and most widely used approach is to divide the difference in means in each study by its standard deviation and present pooled results in standard deviation units (standardized mean difference). Disadvantages of this approach include vulnerability to varying degrees of heterogeneity in the underlying populations and difficulties in interpretation. Alternatives include presenting results in the units of the most popular or interpretable measure, converting to dichotomous measures and presenting relative and absolute effects, presenting the ratio of the means of intervention and control groups, and presenting the results in minimally important difference units. We outline the merits and limitations of each alternative and provide guidance for meta-analysts and guideline developers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Clinical Epidemiology - Volume 66, Issue 2, February 2013, Pages 173-183
نویسندگان
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