Understanding unexpected results from randomized clini{square}cal trials Does coffee reduce atrial fibrillation recurrences?
This paper demonstrates that applying supplemental frequentist and Bayesian analyses to a randomized controlled trial on coffee and atrial fibrillation reveals that while the original findings were statistically significant, they likely suffer from type M error and offer only modest probabilities of clinically meaningful benefit, thereby highlighting the importance of robustness checks for unexpected trial results.