Ventilator Associated Pneumonia Rate

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Ventilator Associated Pneumonia (VAP) Rate is the number of cases of (old:VAP - Ventilator Associated Pneumonia, new: Pneumonia, ventilator-associated (VAP)) per 1000 invasive ventilator days.

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Reported as

Number of cases of VAP - Ventilator Associated Pneumonia per 1000 Ventilator-days


  • VAP is a device-associated infection, the device being the artificial airway-ventilator-circuit system. VAPis associated with worse patient outcomes and higher costs.
  • Factors affecting the incidence of VAPinclude those from patients (severity of illness, comorbidities, etc.) and processes of care.
  • VAPrate is a measure of the incidence of VAP.

Sampling Plan / Procedure

Inclusion Criteria

Exclusion Criteria

Exclude non-invasive ventilation.


  • Recording the date the VAP occurred.
  • Daily recording of dates of patient being on invasive mechanical ventilation at 2300 HR
  • Total number of ventilated days are calculated and reported on a monthly, quarterly or yearly basis based on the daily data.
  • Time Reference is calendar month, quarter or year.

Definition and Derivation


Num = Total VAP Cases in a calendar period


Denom =Total Vent Days on the same period as the numerator


VAP Rate = Num / Denom * 1000


  • Time Reference: Calendar Dates from Jan 1, 2017 to March 31, 2017
  • Total VAP cases = 5
  • Total days patients are on invasive ventilator at 2300 HR = 688
  • VAP Rate per 1000 days = (5 / 688) * 1000 = 7.3%

Data Sources

SAS Program

  • The SAS program to get the VAP is X:\Julie\SAS_CFE\CFE_macros\
  • The SAS program to get the Ventilator Days is X:\Julie\SAS_CFE\CFE_macros\

Report Users

  • Critical Care Directors, Critical Care Unit Managers and WRHA Outcome Improvement Team Committee
  • St Boniface Cardiac Sciences Program (STB site only)
  • HSC Infection Prevention & Control (HSC site only)
  • WRHA Infection Prevention & Control

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