Table 3.

Results of multivariate analysis for transplantation-related mortality, relapse, leukemia-free, and overall survival by transplantation conditioning regimen

Outcome	Hazard ratio (95% confidence interval)	P
Myeloablative conditioning regimen
Transplantation-related mortality
Double UCB vs single UCB	0.81 (0.52-1.28)	.37
Relapse*
Double UCB vs single UCB	0.94 (0.51-1.73)	.84
Treatment failure (inverse of LFS)†
Double UCB vs single UCB	0.88 (0.61-1.26)	.48
Overall mortality†
Double UCB vs single UCB	0.88 (0.61-1.27)	.51
Reduced-intensity conditioning regimen
Transplantation-related mortality
Double UCB vs single UCB	1.49 (0.51-4.36)	.46
Relapse*
Double UCB vs single UCB	0.88 (0.47-1.63)	.67
Treatment failure (inverse of LFS)†
Double UCB vs single UCB	1.08 (0.64-1.82)	.78
Overall mortality†
Double UCB vs single UCB	1.01 (0.57-1.77)	.98

LFS indicates leukemia-free survival; and UCB, umbilical cord blood

^*Model adjusted for age and disease status.

^†Model adjusted for disease status.