Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Change in croup score
RCT 3-armed trial	198 children (3 months–5 years) with Westley Croup Score 2–7 (see table 1 ) In review	Mean change in croup score from baseline within 6 hours –2.4 with oral dexamethasone (69 children) –2.3 with nebulised budesonide (65 children)	SMD –0.09 95% CI –0.43 to +0.25 P = 0.59		Not significant