Glucocorticoids v placebo for clinical improvement in children with croup*

Time pointNo of studiesWeighted event ratesRBI (95% CI)NNT (CI)
GlucocorticoidsPlacebo
*Abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article.
6 hours1356%41%37% (6 to 56)7 (4 to 50)
12 hours 789%68%31% (16 to 43)5 (3 to 11)
24 hours 595%83%14% (4 to 24)8 (5 to 33)