TABLE 4

Correlation between absolute numbers of sputum immune cells and soluble (s) tumour necrosis factor (TNF) variants in sputum supernatant

Neutrophils per mL sputumEosinophils per mL sputumMonocytes per mL sputumMacrophages per mL sputum
Sputum sTNF-αp=0.351
r=0.142		p=0.449
r=0.116		p=0.165
r=0.210		p=0.088
r= −0.258
Sputum sTNFR1p=0.073
r=0.270		p=0.431
r=0.120		p=0.016
r=0.358		p=0.339
r= −0.146
Sputum sTNFR2p=0.197
r=0.196		p=0.577
r=0.085		p=0.029
r=0.327		p=0.198
r= −0.196

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