Skip to main content

Table 1 Characteristics of 108 children hospitalized for bronchiolitis in their first year of life during 1997–98 at the university hospitals of Stavanger and Bergen (Norway) according to asthma and atopy at 11 years of age

From: Exhaled nitric oxide is related to atopy, but not asthma in adolescents with bronchiolitis in infancy

  Healthy (n = 64) Atopic non-asthmatic (n = 20) P-value Current non-atopic asthma (n = 15) P-value Current atopic asthma (n = 9) P-value
Boys, n (% of group) 30 (47) 14 (70) 0.080 10 (67) 0.252 6 (67) 0.308
Age at hospitalization* (months) 3.5 (2.0, 6.0) 4.0 (1.0, 10.0) 0.603 6.0 (3.0, 9.0) 0.052 5.0 (4.0, 9.5) 0.083
Age at follow up* (year) 11.4 (11.0, 11.8) 11.3 (10.9, 11.5) 0.182 11.4 (10.9, 11.6) 0.745 11.6 (11.3, 12.2) 0.410
Weight at follow-up (kg) 41.2 (9.3) 40.6 (8.2) 0.791 42.8 (7.5) 0.525 42.5 (8.3) 0.692
Height at follow-up (cm) 149.0 (8.2) 147.2 (4.3) 0.206 149.3 (5.6) 0.888 148.9 (6.0) 0.963
ICS, n (% of group) 0 0   2 (13) 0.034 7 (78) <0.001
FEV1% 93.9 (9.3) 99.7 (8.9) 0.014 97.8 (9.5) 0.145 95.8 (9.5) 0.555
FEF25–75% 89.9 (23.9) 88.6 (19.1) 0.819 86.0 (22.9) 0.568 84.4 (20.2) 0.514
FEV1 /FVC ratio 82.8 (7.5) 80.6 (4.9) 0.221 79.7 (7.7) 0.159 78.8 (7.3) 0.135
DRS to methacholine* 6.0 (1.7, 25.5) 4.9 (1.1, 13.4) 0.378 4.1 (1.5, 18.1) 0.910 4.4 (2.2, 13.8) 0.923
  1. *Median (inter quartile range), mean (standard deviation). ICS, inhalation corticosteroid last 12 months before follow up; FEV1%, forced expiratory volume in first second as percentage of predicted; FEF25–75%, forced expiratory flow between 25-75% of the forced vital capacity (FVC); DRS, dose response slope. For missing data, see text. P-values assess comparisons with the healthy group.
  2. Bold values indicate significance at the 0.05 level.