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Table 4 Description of the study population (n = 821)

From: Clinical predictors of radiographic abnormalities among infants with bronchiolitis in a paediatric emergency department

  N n (%)
First wheezing episode 801 492 (59.9)
Sex (male/female) 821 476/345
Age under 3 months 821 170 (20.7)
Prematurity <37 weeks 780 108 (13.1)
Respiratory symptom length (j) – mean (SD) 806 4.1 (5.3)
Feeding difficulties 799 309 (37.6)
Temperature 738  
  < 38°C   373 (45.4)
  [38-39°C]   211 (25.7)
  ≥ 39°C   154 (18.8)
Previous antibiotherapy 816 124 (15.1)
Age-related respiratory rate [6] 747  
  1 point   427 (52.0)
  2 points   101 (12.3)
  3 points   219 (26.7)
Global score for retraction signs 798  
  0 point   233 (29.2)
  1 point   454 (56.9)
  2 points   83 (10.4)
  3 points   28 (3.5)
Oxygen saturation 747  
  ≥95%   642 (85.9)
  <95%   105 (14.1)
Crackles 814 81 (9.9)
Bronchitis rales 814 272 (33.1)
Otitis 789 104 (12.7)
Conjunctivitis 802 27 (3.3)
Toxic appearing 817 35 (4.3)
Chest radiography 821 427 (52.0)
Hospitalisation 821 350 (42.6)