Antibiotics v placebo or other antibiotics for acute maxillary sinusitis*

OutcomesComparison (no. of RCTs)Weighted event ratesRBI (95% CI)NNT (CI)
Clinical cure ratePenicillin v control (2)35% v 19%72% (0 to 196)7 (4 to 39)
*RCTs=randomised controlled trials. Other abbreviations defined in glossary; RRR, RBI, NNT, and CI calculated from data in article.
Dropouts from adverse eventsMacrolide/ cephalosporin v amoxicillin- clavulanate (9)2% v 4%56% (22 to 75)44 (25 to 200)