Symptom category (at 4Â h) | Correlate | Timepoint (h) | r (std error) | P value |
---|---|---|---|---|
Total | Percentage ΔFeNO | 4 | 0.29 (0.13) | 0.04 |
 |  | 24 | 0.39 (0.12) |  < 0.00 |
 | Percentage ΔFEV1 | 4 | 0.04 (0.14) | 0.78 |
 |  | 24 | 0.07 (0.14) | 0.64 |
 | Δlog PC20 | 24 | − 0.06 (0.15) | 0.71 |
Constitutional | Percentage ΔFeNO | 4 | 0.12 (0.14) | 0.41 |
 |  | 24 | 0.34 (0.13) | 0.02 |
 | Percentage ΔFEV1 | 4 | 0.04 (0.14) | 0.79 |
 |  | 24 | 0.17 (0.14) | 0.24 |
 | Δlog PC20 | 24 | − 0.02 (0.15) | 0.91 |
Eyes | Percentage ΔFeNO | 4 | 0.32 (0.13) | 0.02 |
 |  | 24 | 0.40 (0.12) |  < 0.00 |
 | Percentage ΔFEV1 | 4 | 0.04 (0.14) | 0.78 |
 |  | 24 | 0.09 (0.14) | 0.55 |
 | Δlog PC20 | 24 | − 0.07 (0.15) | 0.65 |