Table 2.

Multivariable regression analysis for EFS, OS, and RR

EFSOSRelapse risk end course 1
nHR (95% CI)P valueHR (95% CI)P valuenHR (95% CI)P value
ITDFR 118  1  105 1  
ITDINT 134 1.91 (1.30-2.78) .001 2.07 (1.3-3.31) .002 92 1.74 (1.07-2.84) .027 
ITDPR 202 3.70 (2.61-5.24) <.001 3.48 (2.26-5.37) <.001 95 3.87 (2.44-6.14) <.001 
LAR 166   112  
HAR 288 1.25 (0.83-1.45) .097 1.29 (0.94-1.76) .117 180 1.17 (0.79-1.73) .431 
Chemotherapy treatment 256   160  
Gemtuzumab ozogamicin treatment 110 1.10 (0.83-1.45) .526 1.06 (0.77-1.47) .723 70 0.69 (0.44-1.10) .118 
Sorafenib + HCT in CR1 (arm C AAML1031) 88 0.63 (0.43-0.93) .019 0.81 (0.52-1.26) .355 62 0.30 (0.15-0.61) .001 
HCT in CR not received 291   163  
HCT in CR received (TVC) 163 0.60 (0.43-0.83) .002 0.62 (0.44-0.87) .006 129 0.57 (0.37-0.90) .016 
EFSOSRelapse risk end course 1
nHR (95% CI)P valueHR (95% CI)P valuenHR (95% CI)P value
ITDFR 118  1  105 1  
ITDINT 134 1.91 (1.30-2.78) .001 2.07 (1.3-3.31) .002 92 1.74 (1.07-2.84) .027 
ITDPR 202 3.70 (2.61-5.24) <.001 3.48 (2.26-5.37) <.001 95 3.87 (2.44-6.14) <.001 
LAR 166   112  
HAR 288 1.25 (0.83-1.45) .097 1.29 (0.94-1.76) .117 180 1.17 (0.79-1.73) .431 
Chemotherapy treatment 256   160  
Gemtuzumab ozogamicin treatment 110 1.10 (0.83-1.45) .526 1.06 (0.77-1.47) .723 70 0.69 (0.44-1.10) .118 
Sorafenib + HCT in CR1 (arm C AAML1031) 88 0.63 (0.43-0.93) .019 0.81 (0.52-1.26) .355 62 0.30 (0.15-0.61) .001 
HCT in CR not received 291   163  
HCT in CR received (TVC) 163 0.60 (0.43-0.83) .002 0.62 (0.44-0.87) .006 129 0.57 (0.37-0.90) .016 

Multivariable regression analysis for EFS, OS, and RR according to cooccurring risk mutation group (FR, INT, PR), LAR (≤0.4) vs HAR (>0.4), treatment received, and HCT in CR as TVC.

Patients in the chemotherapy treatment group included patients on CCG2961, AAML0531 arm A, and AAML1031 arm A/B, patients in the gemtuzumab ozogamicin treatment group included patients treated on AAML03P1 and AAML0531 arm B, and patients in the sorafenib + HCT in CR1 group were those on AAML1031 arm C.

HR, hazard ratio; TVC, time-varying covariate.

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