Correlation between Macrophage Polarization and PD-L1-Related Tumor Microenvironmental Alteration and Metastasis in Pancreatic Ductal Adenocarcinoma

Table 2

CD86 positive cells infiltration in primary tumors compared to metastases.

	Samples	CD86		Z	value^∗
		Range	Median
Primary tumor	42	2–31.2	11.6	−2.513	0.012
Metastasis	50	1.4–27.8	8.4

Bold values indicate statistically significant correlations with values less than 0.05. ^∗Mann–Whitney U test.