PD-L1, STAT3, IL6, and EGFR Immunoexpressions in High-Grade Osteosarcoma

Table 3

Crosstabulation between PD-L1, STAT3, IL6, and EGFR immunoexpressions.

	PD-L1 immunoexpression				value (using chi-square test)
	Negative		Positive
	n	%	n	%
Immunoexpression of STAT3
Negative	25	92.6	2	33.3	0.005 (with Fisher exact test)
Low expression	2	7.4	4	66.7
Immunoexpression of EGFR
Negative	5	18.5	0	0.0	0.049
Low expression	14	51.9	1	16.7
High expression	8	29.6	5	83.3
Immunoexpression of IL6
Negative	3	11.1	0	0.0	0.627
Low expression	6	22.2	1	16.7
High expression	18	66.7	5	83.3