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Table 8 Correlation between sputum biomarker concentration and total sputum protein concentration.

From: Multi analyte profiling and variability of inflammatory markers in blood and induced sputum in patients with stable COPD

Sputum Protein Spearman's correlation coefficient (Rho) P value
Eotaxin2 0.70 0.0005
HGF 0.59 0.003
IP-10 0.57 0.005
KGF 0.37 0.07
MMP-13 0.58 0.004
TNF-RI 0.64 0.002
GROα 0.65 0.001
TIMP2 0.69 0.0006
TNF-RII 0.67 0.0009
α2 macroglobulin 0.51 0.01
ENA-78 0.44 0.03
IL-13 -0.26 0.19
IL-15 -0.18 0.37
IL-18 0.54 0.007
IL-1β 0.69 0.0006
IL-1RA 0.39 0.05
IL-6 0.64 0.001
IL-8 0.70 0.0005
MCP-1 0.69 0.0006
MMP-2 0.26 0.20
TIMP-1 0.55 0.006
VEGF 0.61 0.002
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