Table 2. HNSCC or control patient PB CD71 positivity (%) on T lymphocytes (CD3-positive cells) or monocyte 24 hours in vitro LPS-stimulated IL-6 secretion (pg/ml).

	Control			HNSCC			p-value
	Mean	SD	Range	Mean	SD	Range
	Monocyte spontaneous in vitro 24-hour cytokine secretion
IL-6	8210	13039	1–44747	3389	6409	0–26463	n.s.
	Monocyte LPS-stimulated in vitro 24-hour cytokine secretion
IL-6	51794	39837	7135–131011	51347	35653	1–139794	n.s.
	Monocyte LPS-stimulated in vitro 24-hour net cytokine secretion
IL-6	43588	34702	6857–127575	47835	33865	0–133014	n.s.
	PB T lymphocytes CD71+ (%)
CD71/CD3	8.3	4.6	1.0–8.3	9.2	6.0	1.6–25.4	n.s.