Table 1.

Clinical and pathological characteristics of patients with DLBCL in our study

Characteristics	Discovery cohort	Internal validation cohort	GSE31312 cohort	GSE10846 cohort	GSE4475 cohort
No. of patients	213	213	426	350	129
Age, year
>60	121	123	244	196	72
≤60	92	90	182	154	57
Gender
Female	101	82	183	152	54
Male	112	131	243	184	74
Unknown				14	1
Stage
I/II	97	106	203	160	36
III/IV	116	107	223	184	48
Unknown				6	45
No. of extranodal sites
<2	167	170	337	299
≥2	46	43	89	26
Unknown				25
LDH
0	72	61	133	140
1	120	133	253	156
Unknown	21	19	40	54
ECOG
<2	168	171	339	256
≥2	45	42	87	74
Unknown				20
Subtype
GCB	106	121	227	183	74
ABC	107	92	199	167	55
Unclassified
Survival status
Dead	80	74	154	143	51
Alive	133	139	272	207	42
Unknown					36