Meta-analyses may reveal effects not noticeable in individual studies, such as treatment-by-subgroup interactions (e.g. effects in males vs. females). To support Bayesian analysis, prior knowledge on interaction heterogeneity is crucial. @panaro compiled such data, showing heterogeneity is often lower than expected (which makes the derived prior valuable to support formal analyses).
See here for details:

👉 https://arxiv.org/abs/2606.23968

(Joint work with @friede1)

#Bayesian #MetaAnalysis #MedStatGoe