TABLE 3

Spearman correlation matrix of the difference (Δ) between membrane-bound (m) tumour necrosis factor (TNF) marker levels between blood and sputum with soluble (s) variants in sputum supernatant

Δm
NeutrophilsEosinophilsMonocytes
Sputum sTNF-αp=0.708
r=0.057
Sputum sTNFR1p=0.269
r= −0.168
Sputum sTNFR2p=0.506
r=0.102
p=0.024
r=−0.337
p=0.935
r=0.012

p-values and correlation coefficients (r) were derived from Spearman analyses. Significant p-values are highlighted in bold. TNFR: TNF receptor.