Table 2. Intercorrelation between PD-L1, PD1, CTLA-4, and CD8+ tumor-infiltrating lymphocytes.

	PD-L1			CTLA-4			CD8+ TILs
	Low	High	p-value	Low	High	p-value	Low	High	p-value
PD-1			0. 034*			0. 376			< 0. 001*
Low	74	134		119	89		150	58
High	64	179		149	94		75	168
CD8+ TILs			0. 023*			0. 66
Low	80	145		136	89
High	58	168		132	94
CTLA-4			0. 012*
Low	70	198
High	68	115

^*Statistically significant p-values are indicated in boldface type.

Abbreviations: TILs, tumor infiltrating lymphocytes.