Table 3.

Comparisons of Baseline Characteristics of PTLD Patients Based on EBV Status^a

	EBV Positive (N =139)	EBV Negative (N =78)	P
Age > 60 y	48 (34.5%)	34 (43.6%)	0.21
Male gender	91 (65.5%)	55 (70.5%)	0.73
LDH > ULN	29 (27.9%)	20 (30.8%)	0.91
Stage III/IV	80 (59.7%)	49 (64.5%)	0.74
IPI > 1	80 (60.6%)	46 (63.0%)	0.91
Extranodal disease	120 (86.3%)	62 (79.5%)	0.36
Grafted organ	33 (23.7%)	9 (11.5%)	<0.001
PTLD < 1 y after transplant	70 (50.4%)	5 (6.4%)	<0.001

^aUnknown = 10.

EBV = Epstein-Barr virus; IPI = International Prognostic Index; PTLD = post-transplant lymphoproliferative disorder; ULN = upper limit of normal.