Variable	All Patients	Flu/Mel/Thio	Flu/Mel/TBI	P-Value
	(N = 134)	(N = 64)	(N = 70)
Age at transplant
<55 years	71 (52.99%)	33 (51.56%)	38 (54.29%)	0.863
≥55 years	63 (47.01%)	31 (48.44%)	32 (45.71%)
Gender
Male	82 (61.19%)	40 (62.50%)	42 (60.00%)	0.86
Female	52 (38.81%)	24 (37.50%)	28 (40.00%)
Disease Subtype
AML/MDS	103 (76.87%)	48 (75.00%)	55 (78.57%)	0.684
ALL	31 (23.13%)	16 (25.00%)	15 (21.43%)
KPS at transplant
KPS 90 - 100	65 (57.52%)	38 (71.70%)	27 (45.00%)	0.005
KPS < 90	48 (42.48%)	15 (28.30%)	33 (55.00%)
DRI
Low/Intermediate DRI	76 (57.14%)	32 (50.00%)	44 (63.77%)	0.118
High/Very High DRI	57 (42.86%)	32 (50.00%)	25 (36.23%)
HCT-CI
HCT-CI ≤ 3	83 (61.94%)	39 (60.94%)	44 (62.86%)	0.86
HCT-CI > 3	51 (38.06%)	25 (39.06%)	26 (37.14%)
Melphalan dose
100 mg/m2	68 (50.75%)	25 (39.06%)	43 (61.43%)	0.015
140 mg/m2	66 (49.25%)	39 (60.94%)	27 (38.57%)
Patient CMV status
Seropositive	122 (91.04%)	59 (92.19%)	63 (90.00%)	0.767
Seronegative	12 (8.96%)	5 (7.81%)	7 (10.00)
Stem cell source
Bone marrow	117 (87.31%)	60 (93.75%)	57 (81.43%)	0.039
Peripheral blood	17 (12.69%)	4 (6.25%)	13 (18.57%)