Table 3.

Regression Results: Unadjusted Offline FeNO (100 ml/sec) by Demographic and Clinical Category, CHS 2003–4 Subjects with Valid FeNO Data*

GROUP	Geometric Mean FeNO	95% Confidence Interval of Geometric Mean	P Value for Group Main Effect
Female	8.31	(7.85, 8.80)	0.62
Male (reference)	8.39	(7.93, 8.87)
Non-Hispanic White (reference)	7.85	(7.47, 8.25)	<0.0001
Hispanic‡	8.29	(7.92, 8.68)
African American	8.31	(7.21, 9.57)
Asian American‡	9.98	(8.93, 11.15)
Other	7.52	(6.88, 8.22)
Age < 8‡	8.17	(7.71, 8.66)	<0.0001
Age 8–9‡	8.13	(7.69, 8.59)
Age >= 9 (reference)	8.77	(8.21, 9.36)
Healthy (reference)	7.50	(7.16, 7.85)	<0.0001
Allergy only‡	8.40	(8.03, 8.78)
Asthma only	7.83	(6.79, 9.02)
Allergy + Asthma‡	9.86	(9.13, 10.65)

*Analytical model includes main effects of sex, ethnic group, clinical group, age stratum, height-for-age, weight-for-height, and community.

‡Different from reference group, P < 0.001.