I plan to perform a meta-analysis with a primary outcome consisting in very rare events (sometimes not occurring in any group of some studies included), and a much more frequent secondary outcome.
To assess the risk of publication bias, I therefore decided to draw a funnel plot based on seconday outcome data.
Is that acceptable? If so, how would I conduct sensitivity analyses related to a possible publication bias?
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user47679
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1This Q&A might be helpful – mdewey Jan 06 '22 at 16:28
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@mdewey unless I'm mistaken you forgot to include a link to the Q&A – user47679 Jan 06 '22 at 17:05
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1https://stats.stackexchange.com/questions/193260/minimal-requirements-for-funnel-plots – mdewey Jan 06 '22 at 17:19