PD-L1 expression in tumor and inflammatory cells is associated with favorable tumor features and favorable prognosis in muscle-invasive urothelial carcinoma of the bladder not treated by immune checkpoint inhibitors

Table 1 Patient cohort

	study cohort on TMA (n = 2710)
follow up	512
months
mean	19.3
median	13.0
pathological tumor stage
pTa	887 (39.2%)
pT2	462 (20.4%)
pT3	615 (27.2%)
pT4	298 (13.2%)
tumor grade
G2	820 (30.6%)
G3	1858 (69.4%)
pathological lymph node status
pN0	734 (62.0%)
pN+	449 (38.0%)
resection margin status
R0	595 (80.6%)
R1	143 (19.4%)
lymphatic vessel infiltration
L0	275 (49.5%)
L1	281 (50.5%)
blood vessel infiltration
V0	450 (74.4%)
V1	155 (25.6%)

Percent in the column “study cohort on TMA” refers to the fraction of samples across each category. Numbers do not always add up to 2710 in the different categories because of cases with missing data

ISSN: 1471-2490