Table 5.

Cox Regression Analysis

	Event-Free Survival				Overall Survival
Factor	HR	95% CI		p	HR	95% CI		p
Favorable cytogenetics	0.322	0.097	1.072	0.065	0.433	0.143	1.314	0.139
de novo AML	0.013	0.001	0.120	< 0.001	0.249	0.043	1.449	0.122
Leukocyte count	1.014	1.005	1.023	0.004	1.002	0.992	1.011	0.744
Age	1.114	1.008	1.231	0.034	1.115	1.015	1.225	0.023
MRD+	3.817	1.321	11.033	0.013	2.662	0.942	7.519	0.065

HR, hazard ratio

For favorable cytogenetics, de novo AML, and MRD, reported hazard ratios indicate rate of event or death among favorable cytogenetics relative to other patients, de novo patients relative to other patients, and MRD+ patients relative to MRD- patients. For leukocyte count, hazard ratio indicates relative change in event or death rate associated with an increase of 1,000 units in initial leukocyte count. For age, hazard ratio indicates relative change in event or death rate associated with a one-year increase in age.