Adjusted relative increase in eNO levels in children with symptoms compared with children without symptoms; in children with and without bronchial hyperresponsiveness; and per unit increase in eosinophils and lung function
| Variable | Relative increase | 95% confidence interval |
|---|---|---|
| Adjusted for age, sex, gas cooking, unvented water heater, environmental tobacco smoke exposure, and having a cold during the eNO sampling; lung function analyses were adjusted also for height and weight. | ||
| Wheeze in last 12 months | 1.26 | 1.07 to 1.48 |
| Woken up with wheeze in last 12 months | 1.33 | 1.10 to 1.62 |
| Itchy rash in last 12 months | 1.08 | 0.95 to 1.22 |
| Asthma ever | 1.29 | 1.09 to 1.52 |
| Hay fever ever | 1.46 | 1.22 to 1.74 |
| Eczema ever | 1.18 | 1.06 to 1.32 |
| Bronchitis in last 12 months | 1.25 | 1.05 to 1.48 |
| Dry cough in last 12 months | 0.99 | 0.88 to 1.11 |
| Nasal discharge and conjunctivitis in last 12 months | 1.55 | 1.33 to 1.80 |
| Having a cold during exhaled breath collection | 1.30 | 1.14 to 1.47 |
| Bronchial hyperrresponsiveness | 1.30 | 1.13 to 1.49 |
| Eosinophils (per 1000) | 1.89 | 1.51 to 2.38 |
| Increase in eNO/l change in FEV1 | 0.95 | 0.77 to 1.17 |
| Increase in eNO/l change in FVC | 1.04 | 0.85 to 1.26 |
| Increase in eNO/l/s change in PEF | 1.02 | 0.96 to 1.09 |
| Increase in eNO/l/s change in MMEF | 1.00 | 0.91 to 1.10 |