Table 2.

Cytokine levels at baseline compared to postradiotherapy levels (P values).

	Mean values of cytokines (pg/mL)
	IL-1β	IL-2	IL-6	IL-8	MCP-1	TNF-α
HD	0.106	2.103	0.921	3.241	350.54	0.948
Patients pre-RT	1.9	3.05	2.65	5.309	245.52	1.41
Patients 4 weeks after RT	4.27	4.84	12.95	19.03	480.38	4.84
Patients 6 months after RT	3.49	3.58	6.34	7.83	379.97	3.58
t-test (HD versus pre-RT)	5.42e − 17*	0.00278*	2.44e − 09*	0.42687	0.04959*	7.702e − 05*
t-test (pre-RT versus 4 w)	0.02682*	0.00016*	0.04853*	0.05191	0.06744	0.00165*
t-test (pre-RT versus 6 m)	0.09564	0.0673	0.3087	0.05585	0.24408	0.00826*

*P < 0.05.