|Outcomes||Comparisons||Event rates||RBI (95% CI)||NNT (CI)|
|*Abbreviations defined in glossary; RBI, RRR, NNT, and CI calculated from data in article using odds ratios adjusted for differences at baseline.|
|†Based on 172 patients who were symptom free at day 21.|
|Cure rate at 14 days||S+AA v AA||75% v 57%||33% (4 to 54)||6 (4 to 44)|
|S+AB v AA||82% v 57%||44% (19 to 60)||4 (3 to 10)|
|Cure rate at 21 days||S+AA v AA||89% v 62%||45% (23 to 54)||4 (3 to 7)|
|S+AB v AA||86% v 62%||39% (19 to 51)||5 (4 to 9)|
|RRR (CI)||NNT (CI)|
|Recurrence at 21–42 days†||S+AA v AA||26% v 45%||56% (19 to 83)||4 (3 to 12)|
|S+AB v AA||21% v 45%||45% (0 to 69)||Not significant|
Ear drops containing steroids were better than acetic acid for otitis externa
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