Table 2.

Relationship between PD-1 expression and CD8 expression

2a
Parameter	PD-1 positive	PD-1 negative	p value
	n = 23	n = 59
CD8 n, %			0.001
Positive	9 (39.1)	46 (78.0)
Negative	14 (60.9)	13 (22.0)

2b. Relationship between PD-L1 expression and CD8 expression
Parameter	PD-1 positive	PD-1 negative	p value
	n  = 16	n  = 66
CD8 n, %			0.027
Positive	7 (43.8)	48 (72.7)
Negative	9 (56.7)	18 (27.3)

2c Relationship between PD-1 expression and PD-L1 expression
Parameter	PD-1 positive	PD-1 negative	p value
	n  = 16	n  = 66
PD-1 n, %			0.029
Positive	8 (50.0)	15 (22.7)
Negative	8 (50.0)	51 (77.3)