Table 4. Odds of specific asthma symptoms associated with estimate weekly ammonia.
| Symptom or medication use | OR (95%CI)a |
|---|---|
| Limitation of activities | 1.1 (0.79, 1.4) |
| Wheezing | 0.99 (0.77, 1.3) |
| Nighttime waking | 0.92 (0.76, 1.3) |
| Shortness of breath | 1.1 (0.86, 1.3) |
| Symptoms worse in morning | 0.88 (0.75, 1.0) |
| Use of short-acting “relief” medication | 0.97 (0.82, 1.2) |
Abbreviations: IQR, interquartile increase; OR, odds ratio
a
OR is the odds ratio for report of any symptom/medication use in week prior associated with an IQR increase in weekly ammonia (18 μg/m3).