Kaplan-Meier analysis showing prognostic significance of deletion status, Sokal score, and Hasford score.

Non–high-risk refers to the combined low- and intermediate-risk groups in the Sokal or Hasford scoring systems. Calculations were performed using data for 210 patients and the significance of survival differences assessed by log-rank analysis. Patients who underwent stem cell transplantation and patients who died of causes unrelated to CML were censored at the time of the procedure.