Tap water v sterile saline for irrigation of simple lacerations in the emergency department*
Outcomes at 5–14 daysTap waterSterile salineRRI (95% CI)NNH
Wound infection4.0%3.3%21% (−50 to 170)Not significant

  • *Abbreviations defined in glossary. RRI calculated from data in article.

  • *Abbreviations defined in glossary. RRI calculated from data in article.