Paediatrics & child health
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Viral laryngotracheobronchitis croup is the most common cause of acute upper airway obstruction in young children. Clinical assessment of children with croup is often performed using 'croup scores'; however, these scores have not been validated outside of the research setting. ⋯ In the busy practice setting of a paediatric ED, substantial interobserver variability exists among health care providers in the measurement of respiratory signs associated with croup in young children. Based on the present study in a practice setting and two research studies, the most reliable items of all of the published items included in croup scoring systems were stridor and retractions.