Table 3. The relationships among immune and pathological biomarkers.

Characteristic	OX40 expression on TILs		P value
	Negative	Positive
OX40 expression on tumor			0.028
Negative	65	60
Positive	3	11
PD-L1 expression on tumor			0.006
Negative	62	52
Positive	6	19
OX40L expression on tumor			0.074
Negative	55	48
Positive	13	23
PD-1 expression			0.0001
Negative	51	28
Positive	17	43
TILs in the tumor microenvironment			0.001
Negative	41	22
Positive	27	49
PD-L1 expression on TILs			0.0001
Negative	57	32
Positive	11	39
Pathology types			0.042
Non-adenocarcinoma	43	56
Adenocarcinoma	25	15

PD-1, program death-1; PD-L1, program death-ligand 1; TILs, tumor infiltrating lymphocytes.