Table 4.

Correlation of PD‐L1 and PD‐L2 expression

	PD‐L2			P‐value
	<1%	1%‐49%	≥50%
PD‐L1
<1%	81	36	52	0.957
1%‐49%	20	12	15
≥50%	7	3	5

Fisher's exact test was performed.