Table 1.

Patient characteristics

	All patients (n = 68)		Low sPD-L1 (n = 36)		High sPD-L1 (n = 32)
	n	(%)	n	(%)	n	(%)	P
Age (years)
≤ 60	41	(60)	22	(61)	19	(59)	0.884
>  60	27	(40)	14	(39)	13	(41)
Sex
Male	27	(40)	13	(36)	14	(44)	0.622
Female	41	(60)	23	(64)	18	(56)
ECOG PS
0–1	56	(82)	33	(92)	23	(72)	0.054
≥ 2	12	(18)	3	(8)	9	(28)
Serum Lactate dehydrogenase
Normal	54	(79)	29	(81)	25	(78)	>  0.999
Elevated	14	(21)	7	(19)	7	(22)
Number of lesions
Single	11	(16)	7	(19)	4	(12)	0.521
Multiple	57	(84)	29	(81)	28	(88)
Brain deep region involvement
Absence	44	(65)	23	(64)	21	(66)	>  0.999
Presence	24	(35)	13	(36)	11	(34)
Cell of origin subtype
GCB	13	(19)	8	(22)	5	(16)	0.719
ABC	50	(74)	25	(69)	25	(78)
Not evaluated	5	(7)	3	(8)	2	(6)
Ki67
< 90	23	(34)	11	(31)	12	(38)	0.769
≥ 90	42	(62)	23	(64)	19	(59)
Not evaluated	3	(4)	2	(6)	1	(3)