Effect of sensitisation to specific allergens on eNO levels in winter and summer, adjusted for the effect of sensitisation to other allergens, for ambient NO levels and for the use of inhaled corticosteroids (ICS)
| Winter (n=213) | Summer (n=235) | |||
|---|---|---|---|---|
| Fold difference (95% CI) in eNO associated with sensitisation | p value | Fold difference (95% CI) in eNO associated with sensitisation | p value | |
| Ambient NO | 1.003 (1.001 to 1.005) | 0.008 | 1.14 (1.09 to 1.18) | <0.001 |
| ICS | 1.12 (0.91 to 1.39) | 0.29 | 0.96 (0.74 to 1.23) | 0.74 |
| Sensitisation to: | ||||
| Cladosporium | 1.39 (1.15 to 1.68) | 0.001 | 1.37 (1.07 to 1.75) | 0.01 |
| D pteronyssinus | 1.21 (1.05 to 1.38) | 0.009 | 1.10 (0.93 to 1.31) | 0.26 |
| Rye grass pollen | 1.10 (0.96 to 1.25) | 0.17 | 1.04 (0.88 to 1.24) | 0.62 |
| Alternaria | 1.08 (0.92 to 1.27) | 0.33 | 1.05 (0.86 to 1.29) | 0.63 |
| Cat | 1.03 (0.87 to 1.23) | 0.70 | 1.14 (0.92 to 1.41) | 0.24 |
| Grain mill dust | 0.83 (0.69 to 1.002) | 0.06 | 0.85 (0.67 to 1.08) | 0.18 |
| Whole wheat grain | 1.08 (0.77 to 1.53) | 0.64 | 0.77 (0.51 to 1.18) | 0.24 |
| Cotton lint | 1.15 (0.67 to 1.95) | 0.62 | 0.90 (0.45 to 1.82) | 0.77 |