Severe bronchiolitis group (n=85) Mild-moderate bronchiolitis group (n=355)
p
Decreased feedinga 65 (76.5%) 220 (62.0%) 0.016*
Time elapsed between onset of symptoms and admission b
4.04±2.11 (1-10) 4.90±3.15 (1-20)
0.017*
Time elapsed between onset of symptoms and worsening of findings b
2.78±1.62 (1-8) 4.29±1.78 (1-10)
<0.001*
Subcostal retractiona 81 (95.3%) 15 (4.2%) <0.001*
Cyanosisa 38 (44.7%) 24 (6.8%) <0.001*
Oxygen saturationb
86.61±3.62 (70-93) 97.07±3.41 (80-100)
<0.001*
Oxygen requirementc <0.001*
By mask - 40 (11.3%)
HFNC† 82 (96.5%) -
Intubation 3 (3.5%) -
Length of hospitalization (days)b 7.87±3.50 (3-20) 4.94±2.46 (1-20) <0.001*