Table 1

Whole-cohort baseline characteristics

Median age (years) (IQR)3.11 (1.39–6.02)
Age (years), n (%)
 <136 (16)
 1–245 (20)
 2–563 (29)
 5–1045 (20)
 10–1532 (14)
Female, n (%)96 (44)
Fever recorded, n (%)120 (55)
Median duration of fever (days) (IQR)3 (2–6)
Symptoms, n (%)
 Increased work of breathing202 (91)
 Cough191 (87)
 Wheeze112 (51)
 Stridor13 (5.9)
 Chest pain4 (1.8)
Antibiotics given before presentation?
 Yes, n (%)44 (20)
  Amoxicillin18
  Amoxicillin/clavulanate2
  Cephalosporins10
  Macrolides10
  Other11
Comorbid medical conditions174 (78)
 Asthma89
 Other lung disease (including bronchopulmonary dysplasia)36
 Neurologic/neurodevelopmental52
 Genetic disease26
 Cardiac disease26
 Endocrine disorders13
 Tracheostomy13
 Chronic kidney disease7
 Immunodeficiency/immunosuppressant drugs5
 Haemoglobinopathies5
 Malignancy3
 Chronic liver disease1
 Other27
Home ventilation/oxygenation, n (%)16 (7)
 Mechanical ventilation7
 Noninvasive ventilation6
 Oxygen therapy without ventilation3
  • PICU, paediatric intensive care unit.