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Table 1 Patient characteristics of children with bronchiolitis requiring invasive ventilation

From: Bacterial co-infection of the respiratory tract in ventilated children with bronchiolitis; a retrospective cohort study

  N = 189
Demographic characteristics
 Boys 108 (57.1%)
 Age (months) 2.91 ± 3.52
 < 6 months of age 168/189 (88.9%)
 Admission weight (kg) 4.91 ± 2.0
 Born Prematurea 53/171b (31.0%)
 Gestational age (weeks) 37.1 ± 4.05
 Deathsc 1 (0.5%)
Underlying conditions
 Any underlying condition 25/188b (13.3%)
 Congenital Heart diseases 11/25b (44.0%)
 Down Syndrome 5 (20.0%)
Viral characteristics
 RSV 126/162b(77.8%)
 2 or more viral infection 24/97b (24.7%)
Clinical characteristics
 CRP max (mg/l) 85.0 ± 62.2
 CRP 0–40 mg/l 55/188b (29.3%)
 40–100 mg/l 67/188b (35.6%)
  > 100 mg/l 66/188b (35.1%)
 Leukocytes highest value (×  109 /l) 13.6 ± 6.4
 Fever (>  38,5 °C) 4/149b (2.7%)
Antimicrobial drug treatment
 Antibiotics started prior to PICU admission 51/101b (50.5%)
 Treatment started during PICU admission 159 (84.1%)
Cultures
 Cultured (BAL or TA) 167 (88.4%)
  1. a: < 37 weeks
  2. bdata was only available for this proportion of patients
  3. cDied from pulmonary hypertension
  4. Data is either displayed as mean and standard deviation
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