Table 5.

Results of multivariable analysis for predictors of overall mortality

Variables	N1/N2	RR (95% CI)	P
Conditioning regimen			< .001*
FLU-containing regimen	21/46	1.00
Non–FLU-containing regimen, T-cell–depleted grafts	24/26	3.44 (1.72-6.91)	< .001
Non–FLU-containing regimen, non–T-cell-depleted grafts	19/24	3.57 (1.80-7.06)	< .001
Prior red blood cell transfusions
20 or less	26/40	1.00
More than 20	22/24	2.49 (1.34-4.66)	.004
Donor-recipient CMV status			.007†
Donor negative/recipient negative	30/45	1.00
Donor positive/recipient negative	11/18	1.09 (0.53-2.26)	.817
Donor negative/recipient positive	15/24	1.29 (0.68-2.44)	.437
Donor positive/recipient positive	8/9	4.52 (1.90-10.74)	< .001

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

^*Two-degree freedom test.

^†Three-degree freedom test.