. Author manuscript; available in PMC: 2009 Mar 2.

Published in final edited form as: J Allergy Clin Immunol. 2009 Jan;123(1):146–152.e8. doi: 10.1016/j.jaci.2008.10.047

TABLE E5.

Correlation coefficients (r) for biomarkers of airway oxidant stress^*^†

	GSH:GSSG E_h	% GSSG	H₂O₂	8-Isoprostanes	Malondialdehyde
GSH:GSSG E_h	1	0.854	0.299	0.315	0.509
		P < .001	P = .049	P = .027	P = .031
% GSSG		1	0.351	0.485	0.343
			P < .020	P = .005	P = .024
H₂O₂			1	0.338	0.343
				P = .050	P = .049
8-Isoprostanes				1	0.698
					P < .001
MDA					1

Data are from the combined sample of subjects with severe asthma with and without airway obstruction. Adult and pediatric controls were excluded from this analysis.

^†

Coefficients for H₂O₂, 8-isoprostanes, and malondialdehyde were obtained after logarithmic transformation.