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.