Table 5.

Correlations between the serum cytokines, chemokines, and growth factor concentrations in the total cohort of RA patients (n = 140).

	IL-1β	IL-1Ra	IL-2	IL-4	IL-6	IL-7	IL-8	IL-10	IL-12	IL-17	G-CSF	GM-CSF	IFN-γ
TNF	0.85	0.64	0.77	0.86	0.59	0.50	0.23	0.70	0.68	0.52	0.75	0.79	0.81
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	.0062	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001
IFN-γ	0.86	0.66	0.80	0.95	0.56	0.73	0.31	0.72	0.79	0.50	0.81	0.82
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	.0002	<.0001	<.0001	<.0001	<.0001	<.0001
GM-CSF	0.86	0.72	0.89	0.87	0.59	0.50	0.26	0.77	0.67	0.48	0.79
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	.0015	<.0001	<.0001	<.0001	<.0001
G-CSF	0.77	0.62	0.71	0.86	0.47	0.49	0.22	0.63	0.55	0.48
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	.0083	<.0001	<.0001	<.0001
IL-12	0.84	0.53	0.79	0.82	0.45	0.84	0.35	0.90
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001
IL-10	0.80	0.68	0.76	0.73	0.69	0.63	0.23
	<.0001	<.0001	<.0001	<.0001	<.0001	<.0001	.0237
IL-7	0.61	0.34	0.61	0.70	0.35
	<.0001	<.0001	<.0001	<.0001	<.0001
IL-4	0.88	0.70	0.81
	<.0001	<.0001	<.0001
IL-2	0.83	0.77
	<.0001	<.0001
IL-1Ra	0.79
	<.0001

*For each pair of values, the correlation coefficient (r) is uppermost with the corresponding P value underneath.

Strong correlations (r ≥ 0.7) are highlighted in bold type, and moderate and weak correlations in plain type.