Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Recurrence
Systematic review	Number of adults and children not reported 5 RCTs in this analysis	Recurrent symptoms with corticosteroids with placebo Absolute results not reported	4 RCTs reported no significant difference in recurrent symptoms, whereas one trial reported significantly increased recurrence in people receiving placebo Reported as significant/non-significant for each trial; no further data reported by review P value not reported	Effect size not calculated