Sputum supernatant cytokine concentrations before and after two weeks of oral dexamethasone.

Data presented as median (IQR). All results pg/ml.Results with superscript numerals had significance tests 1pre-dexamethasone smokers vs. never-smokers with asthma,2post-dexamethasone smokers vs. never smokers with asthma,3pre-dexamethasone vs. post-dexamethasone smokers with asthma,4pre-dexamethasone vs. post-dexamethasone never smokers with asthma.Cytokine abbreviations: CXC; CXC chemokine motif ligand, CCL; CC chemokine motif ligand, GM-CSF; granulocyte macrophage colony-stimulating factor, IFN; interferon IL; interleukin, TNF; tumor necrosis factor.