Table 4.

Results of multivariable analysis for predictors of early mortality

Variables	N1/N2	RR (95% CI)	P
Conditioning regimen			< .001*
FLU-containing regimen	11/46	1.00
Non–FLU-containing regimen, T-cell–depleted grafts	17/26	4.19 (1.88-9.39)	< .001
Non–FLU-containing regimen, non–T-cell-depleted grafts	15/24	5.11 (2.21-11.84)	< .001
Age at transplantation
10 years or younger	12/37	1.00
Older than 10 years	31/59	2.07 (1.03-4.15)	.041
Donor-recipient CMV status			.006†
Donor negative/recipient negative	19/45	1.00
Donor positive/recipient negative	5/18	1.11 (0.40-3.09)	.839
Donor negative/recipient positive	13/24	2.20 (1.07-4.52)	.032
Donor positive/recipient positive	6/9	4.91 (1.83-13.19)	.002

N1 indicates number of early deaths; N2, number of evaluable patients; FLU, fludarabine.

^*Two-degree freedom test.

^†Three-degree freedom test.