DFS after BMT: Recursive partitioning analysis. (A) All patients. (B) BMT in CR1 or CR2. Shown in each box are the number and crude percentage of patients surviving leukemia-free after BMT. The relative risks (of relapse or death) reflect Cox model tests of significance within the partition subgroup stratified over remission status. No additional factors identified subgroups with significantly different outcome after either autologous or URD allogeneic BMT.