Cytokines and Chemokines Are Detectable in Swivel-Derived Exhaled Breath Condensate (SEBC): A Pilot Study in Mechanically Ventilated Patients

Table 3

Correlation coefficients between cytokines and chemokines in SEBC.

	IL-1β	IL-4	IL-6	IL-8	IL-10	IL-12	IL-17	IFN-γ	MCP-1	MIP-1β	TNF -α
IL-1β	—
IL-4	.021	—
IL-6	.212	-.063	—
IL-8	.097	-.156	.963	—
IL-10	-.089	-.122	-.045	-.048	—
IL-12	-.071	-.100	-.027	-.040	.991	—
IL-17	.076	.115	-.164	-.212	.257	-.212	—
IFN-γ	-.103	.056	-.062	-.095	.823	.822	.063	—
MCP-1	.060	-.128	.967	.990	.045	.058	-.220	-.001	—
MIP-1β	-.082	-.116	-.006	-.009	.999	.992	-.278	.821	.084	—
TNF-α	.352	.336	.365	.213	-.02	.024	.282	.411	.228	.017	—

A positive value indicates a positive correlation, whereas a negative value indicates a negative correlation; and . IL: interleukin; IFN: interferon; MCP: monocyte chemoattractant protein; MIP: macrophage inflammatory protein; TNF: tumour necrosis factor.