Table 5.

Correlations between intraindividual airway tone heterogeneity and airway measurements

	Asthma	Health
Diameter baseline FRC	r = −0.42, P = 0.07	r = 0.48, P = 0.20
Diameter baseline TLC	r = −0.54, P = 0.02*	r = 0.30, P = 0.44
Diameter postalbuterol FRC	r = −0.04, P = 0.87	r = 0.21, P = 0.60
Diameter postalbuterol TLC	r = −0.24, P = 0.33	r = 0.35, P = 0.35
WT (frac dia) baseline FRC	r = 0.48, P = 0.04*	r = −0.31, P = 0.42
WT (frac dia) baseline TLC	r = 0.59, P = 0.01*	r = −0.34, P = 0.36
WT (frac dia) postalbuterol FRC	r = −0.13, P = 0.61	r = −0.25, P = 0.52
WT (frac dia) postalbuterol TLC	r = 0.30, P = 0.22	r = −0.43, P = 0.25
% Δ diameter FRC-TLC baseline	r = −0.49, P = 0.03*	r = −0.14, P = 0.72
% Δ diameter FRC-TLC postalbuterol	r = −0.51, P = 0.02*	r = 0.50, P = 0.17
% Δ diameter TLC baseline to postalbuterol (tone)	r = 0.78, P < 0.001*	r = 0.09, P = 0.82

WT (frac dia), airway wall thickness expressed as a fraction of airway diameter.

^*P < 0.05.