Recategorization of PR by day 28 RR. The cumulative incidence of NRM within 6 months stratified by conventional NR, PR, and CR. PR was further divided by day 28 RR. (A) JSTCT validation set for primary treatment. (B) MAGIC validation set for primary treatment. (C) JSTCT validation set for second-line treatment. (D) MAGIC validation set for second-line treatment. The pie chart represents the proportion of each risk group.