3.1 Patient characteristics and outcomes
The characteristics of all 176 patients at diagnosis were shown in Table 1. The median follow-up period was 52.5 months (range, 3-128 months). All patients (100%) achieved CR after the induction therapy. 27 (15.3%) patients relapsed during follow-up, and 12 (6.8%) of them died after relapse. The 5-year RFS and OS rates of the entire cohort were 84.5% (95% confidence interval (CI), 78.0-89.2%) and 93.3% (95% CI, 88.2-96.3%), respectively.