Variable | Asthmatic (n = 34) Mean (95% CI) | Inflammatory (n = 20) Mean (95% CI) | Non-inflammatory (n = 18) Mean (95% CI) | Overall ANOVA |
Age (years) | 49.9 (43.6 to 56.1) | 54.1 (45.9 to 62.2) | 50.2 (45.7 to 54.6) | 0.577 |
Duration rhinitis (years) | 15.9 (11.5 to 20.4) | 14.3 (6.3 to 22.3) | 17.7 (10.3 to 25.0) | 0.773 |
Exhaled NO (ppb)* | 34.3 (25.9 to 45.3) | 48.2 (36.0 to 64.5) | 15.4 (11.1 to 21.3) | <0.005 |
Nasal NO (ppb)* | 386.0 (297.5 to 500.7) | 372.1 (274.1 to 504.1) | 413.3 (315.8 to 540.9) | 0.892 |
FEV1% predicted | 83.7 (78.2 to 89.1) | 101.1 (94.3 to 107.8) | 101.2 (94.0 to 108.4) | <0.005 |
FEF25−75% predicted | 60.3 (52.0 to 68.6) | 83.6 (72.4 to 94.7) | 90.1 (77.7 to 102.4) | <0.005 |
sReff % predicted* | 114.6 (92.2 to 142.4) | 81.8 (65.9 to 101.5) | 76.7 (64.2 to 91.6) | 0.012 |
Serum IgE (kU/l)* | 162.7 (91.2 to 290.1) | 93.6 (42.9 to 204.2) | 44.4 (25.6 to 77.0) | 0.011 |
Eosinophil count (cells/μl)* | 0.44 (0.36 to 0.53) | 0.35 (0.26 to 0.47) | 0.25 (0.19 to 0.33) | <0.005 |
*Presented as geometric mean and 95% CI. ANOVA, analysis of variance; NO, nitric oxide; sReff, specific effective airway resistance.