Table 5.

Plasma levels of cytokines in metastatic breast cancer patients and healthy controls

Cytokines	Groups	N	Plasma concentration (pg/ml)	P value
IL-2	Health	42	11.96 ± 5.32
	Patients	89	4.50 ± 0.34	0.169
IFN-γ	Health	42	50.53 ± 13.07
	Patients	89	32.19 ± 6.04	0.208
IL-10	Health	41	11.55 ± 2.53
	Patients	89	30.26 ± 7.10	0.015
IL-6	Health	42	3.20 ± 0.41
	Patients	89	7.07 ± 1.13	0.002
IL-4	Health	42	3.46 ± 0.32
	Patients	92	3.36 ± 0.30	0.842
TGF-β 1	Health	42	51.61 ± 8.17
	Patients	89	39.08 ± 11.21	0.478

Data were presented as mean values ± standard deviation

IL interleukin, TGF transforming growth factor, IFN interferon