Assessment of Immune Cell Populations in Tumor Tissue and Peripheral Blood Samples from Head and Neck Squamous Cell Carcinoma Patients

Table 3

Proportion of lymphocyte subtypes in tumor tissue and peripheral blood samples of HNSCC patients.

Variable (%)	Peripheral blood		Tumor tissue		value
	Mean	SD	Mean	SD
Helper T lymphocytes (CD4^+)	40.10	10.19	2.35	2.5	<0.0001^#
Cytotoxic T lymphocytes (CD8^+)	29.10	7.39	52.72	10.87	0.0002^#
B lymphocytes (CD19^+)	9.60	4.93	39.77	11.80	0.0020
NK cells (CD56^+)	18.10	6.62	5.16	3.45	0.0003^#

^#Paired -test; Wilcoxon test.