Hi,
I'm using the admetan command to run a meta-analysis where I consider subgroups using by(). The issue is that for the subgroups with 1 or 2 studies, the I-squared and the p-value are missing due to insufficient data, and as a result the heterogeneity between groups (at the end of the forest plot) gives missing p-value. When I run the same analysis with metan I have I^2=0 and non-missing p-values. Any idea why is this and how to fix it?
thank you in advance!
I'm using the admetan command to run a meta-analysis where I consider subgroups using by(). The issue is that for the subgroups with 1 or 2 studies, the I-squared and the p-value are missing due to insufficient data, and as a result the heterogeneity between groups (at the end of the forest plot) gives missing p-value. When I run the same analysis with metan I have I^2=0 and non-missing p-values. Any idea why is this and how to fix it?
thank you in advance!

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