Table V.

Statistically significant correlation differences between both ethnic groups and status groups within an ethnic group.

Cytokine 1	Cytokine 2	Caucasian versus African American, Preterm labor	Caucasian versus African American, Term labor	Caucasian, Preterm versus term labor	African American, Preterm versus term labor
		P-value	P-value	P-value	P-value
IL-1β	IL-10	0.013	0.011	0.469	0.305
IL-1β	sTNFR2	0.023	0.296	0.756	0.094
IL-1β	TNF-α	0.005	0.109	0.936	0.153
IL-1βa	sTNFR1	0.015	0.878	0.416	0.055
IL-10	sTNFR1	0.109	0.001	0.086	0.004
IL-10	sTNFR2	0.031	0.004	0.071	0.003
IL-10a	TNF-α	0.054	0.476	<0.001	0.819
IL-6	sTNFR1	0.786	0.014	0.019	0.714
IL-6	TNF-α	0.010	0.977	0.684	0.005
IL-8	IL-10	0.083	<0.001	0.258	0.722
IL-8	TNF-α	0.077	0.084	0.031	0.144
TNF-αa	sTNFR2	0.051	0.954	0.126	0.460

^aBorderline significant in some group comparisons. Bold-faced values are the significant correlation differences.