Table 3.
Full Multivariable Model of Predictors of FeNO, adjusted for baseline FeNO, intervention group assignment, and Time (study time point)
| Variable | Adjusted Parameter Estimate |
Standard Error |
P value |
|---|---|---|---|
| Baseline Age | 0.024 | 0.022 | 0.269 |
| Group | |||
| Placebo filter | −0.069 | 0.076 | 0.3675 |
| HEPA filter | Ref. | -- | |
| Time (study time point) | 0.016 | 0.0087 | 0.066 |
| Baseline FeNO | 0.3298 | 0.061 | <0.0001 |
| Sensitized to Any allergen | |||
| No | −0.3155 | 0.09 | 0.0006 |
| Yes | Ref. | -- | |
| Season | (0.002) | ||
| Winter | −0.1564 | 0.0901 | 0.0849 |
| Spring | −0.1270 | 0.0731 | 0.0846 |
| Summer | −0.3562 | 0.0912 | 0.0001 |
| Fall | Ref. | -- | Ref. |
| Uses Inhaled Steroid Daily | |||
| No | 0.1714 | 0.0801 | 0.0416 |
| Yes | Ref. | -- | |
| Log Nicotine (µg/m3) | −0.0373 | 0.018 | 0.0415 |