Table 2B.

Risk factors for grade III/IV aGvHD using Multivariable Cox regression model (N=322)

Risk Factor	HR	95% CI	P	Reliability
HCT on Admission (< 25% vs. ≥25%)	1.37	0.77, 2.45	0.29	26%
Disease risk (Low, Intermediate, High)			0.38	16%
Intermediate vs Low	0.79	0.40, 1.54	0.48
High vs Low	1.28	0.71, 2.28	0.41
HLA Match			0.04	67%
10/10 Unrelated donor vs. 10/10 Sibling	1.33	0.70, 2.50	0.38
<10/10 Match vs. 10/10 Sibling	2.37	1.21, 4.67	0.01
RBC units (d−7 to +27): Median (> 5 vs. ≤5)	2.06	1.14, 3.73	0.02	78%
Platelet units (d−7 to +27): Median (> 2 vs. ≤2)	0.88	0.49, 1.54	0.63	5%