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Evid Based Nurs 5:49 doi:10.1136/ebn.5.2.49
  • Treatment

Review: antibiotics reduce wound infections and intra-abdominal abscesses in patients having appendectomy

Antibiotics v placebo in patients having appendectomy*

Weighted events rate
Outcomes Number of comparisons (n) Antibiotics Placebo RRR (95% CI) NNT (CI)
*Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. A fixed effects model was used for all analyses. Follow up data were not consistently reported in individual trials.
Wound infection 71 (8643) 5.3% 14.6% 60% (55 to 65) 11 (10 to 13)
Intra-abdominal abscess 20 (4468) 0.7% 1.7% 51% (18 to 70) 100 (59 to 334)

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