Table 1

Demographics and clinical features of children treated for acute bronchiolitis in primary care and at hospital in Oslo, Norway, before and after introduction of new treatment guidelines in 2013

Primary care*Hospital*
200920142017200920142017
n=242n=239n=199n=435n=374n=386
Gender
 Girls (n (%))99 (41.0)91 (38.1)76 (38.2)180 (41.4)142 (38.0)145 (37.6)
 Boys (n (%))143 (59.0)148 (61.9)123 (61.8)255 (58.6)232 (62.0)241 (62.4)
Age (months, mean±SD)6.4±3.36.2±3.45.7±3.34.9±3.15.0±3.44.6±3.2
Heart rate (per minute, mean±SD)152.6±22.3151.5±37.4155.0±21,0147.7±19.4148.1±21.6151.4±19.1**
Respiratory rate (per minute, mean±SD)50.0±12.049.2±11.751.9±11.350.7±11.450.0±11.148.4±10.4*
Oxygen saturation (%, mean±SD)96.5±3.096.0±5.096.4±2.897.1±396.8±3.997.1±2.7
Retractions (n (%))126 (52.1)163 (68.2)136 (68.3)*253 (58.2)197 (52.7)237 (61.4)*
Cyanosis (n (%))2 (0.8)2 (0.8)3 (1.5)4 (0.9)4 (1.1)4 (1.0)
Temperature (°C, mean±SD)37.5±0.937.4±0.937.4±0.937.7±0.837.6±0.837.5±0.8*
CRP (mg/L, median (IQR))†10 (5–14)6 (5–18.5)5 (5–11.5)**7.0 (1.5–17.6)7.8 (1.7–20.6)7.0 (1.4–18)
  • Comparisons were done across all three years at each setting: *p<0.05, **p<0.01, ***p<0.001.

  • *Except for two statistically significant changes in vital signs among the hospital patients; a rise in heart rate from 2009 to 2017; 147.7±19.4 to 151.4±19.1 (p<0.01), and a fall in respiratory rate in the same time period; 50.7±11.4 to 48.4±10.4 (p<0.05), there were no significant differences in vital signs or symptoms between the patient populations in the two settings, nor across the years at each setting.

  • †CRP test used in primary care setting did not specify values <5 mg/L. Values <5 mg/L are set as 5.

  • CRP, C reactive protein.