|Outcome†||CHX||CHX + COL||Placebo||RRR (95% CI)||NNT (CI)|
|*Abbreviations defined in glossary; RRR, NNT, and CI calculated from control event rates and hazard ratios in article.|
|†Follow up to diagnosis of ventilator associated pneumonia, death, or extubation.|
|Ventilator associated pneumonia||10%||–||18%||63% (19 to 83)||10 (7 to 30)|
|–||13%||18%||52% (7 to 76)||11 (8 to 83)|
Oral decontamination with chlorhexidine reduced ventilator associated pneumonia in patients needing mechanical ventilation for ⩾48 hours
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