Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Hospital admission rate
Systematic review	129 children presenting with croup (Westley Croup Score 2 or greater) in the emergency department	Return visits and/or (re-)admissions 0/65 (0%) with nebulised budesonide 0/64 (0%) with nebulised budesonide plus oral dexamethasone	Reported as not significant		Not significant