Factors affecting exhaled nitric oxide measurements: the effect of sex

Respiratory Research

Table 4 Adjusted linear regression models with F_ENO as the dependent variable

Sample	Variables	Anti-log B-coefficient	p-value	R-square
All Study Members	Intercept	15.9	<0.0001	0.331
	Sex	0.69	<0.0001
	Current Smoking – smoked on the testing day	0.45	<0.0001
	Current Smoking – not smoked on the testing day	0.80	0.0014
	Current Asthma	1.26	<0.0001
	Atopy	1.41	<0.0001
	Sex*Current Smoking – smoked on the testing day	1.32	0.0025
	Sex*Current Smoking – not smoked on the testing day	1.10	0.3970
Males	Intercept	15.60	<0.0001	0.343
	Current Smoking – smoked on the testing day	0.45	<0.0001
	Current Smoking – not smoked on the testing day	0.81	0.0021
	Current Asthma	1.25	0.0025
	Atopy	1.45	<0.0001
Females	Intercept	11.31	<0.0001	0.276
	Current Smoking – smoked on the testing day	0.57	<0.0001
	Current Smoking – not smoked on the testing day	0.77	0.0022
	Current Asthma	1.09	0.3460
	Atopy	1.37	<0.0001
	Current Asthma*Current Smoking – smoked on the testing day	1.13	0.4722
	Current Asthma*Current Smoking – not smoked on the testing day	2.31	<0.0001

ISSN: 1465-993X