TABLE 4.

Associations between CD8‐positive T cells and CD68‐positive macrophage density with PD‐L1 expression, CD47 expression, and PD‐L1/CD47 co‐expression in LUAD cases

Factors		PD‐L1, N%			CD47			PDL1/CD47
		Positive	Negative	p	Positive	Negative	p	Positive	Negative	p
CD8	Low	15	108	0.008	84	39	0.254	12	111	0.043
	High	30	87		88	29		23	94
CD68	Low	17	104	0.070	82	39	0.199	15	106	0.365
	High	28	91		90	29		20	99

Abbreviations: CD8, cluster of differentiation 8; CD47, cluster of differentiation 47; CD68, cluster of differentiation 68; CI, confidence interval; HR hazard ratio; LUAD, lung adenocarcinoma; PD‐L1, programmed cell death‐ligand 1.