Left: Posterior distribution of 3-year survival and utility under posterior mode optimal rule, $(τ1=0,τ2=0.7)$⁠. Under this rule, posterior mean 3-year survival is about 60% with about 10% risk of EF dipping below 0.5 during the treatment course. Right: Posterior draws of the optimal rule $τ*$⁠. Red points indicate threshold pairs in the 90% credible set, $C(1−α)⊂T$ for $α=0.10$