Part 5: Subgroup analysis

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Subgroup analysis
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Addionatily, If I want to compare a sub-group analysis comparing male or female, ideally should I use only RTC that compared gender differences? Or can I group studies that have only men or only women and compare them in the sub-group analysis?

jorgemmmmteixeira
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Hi. Wish to ask, what does the I square (83.1%) mean, as shown in the last line of the result "test for subgroup different"?

angjuying
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Hello. In order to make a sub-group analysis, do I need at least 10 studies that fit the sub-group criteria? Or that number (10) is the minimum for the broad meta-analysis and if I have those, that I can make a sub-group with just 3 studies, for example? Thanks

jorgemmmmteixeira
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do you use trial and error to split up into different categories of subgroups and see which one gives least heterogeneity within groups and most between groups?

gangstaful