Scientific article
Open access

Ventilator-associated pneumonia: caveats for benchmarking

Published inIntensive care medicine, vol. 29, no. 11, p. 2086-2089
  • Open Access - Licence nationale Springer
Publication date2003

OBJECTIVE: To determine the influence of using different denominators on risk estimates of ventilator-associated pneumonia (VAP). DESIGN AND SETTING: Prospective cohort study in the medical ICU of a large teaching hospital. PATIENTS: All consecutive patients admitted for more than 48 h between October 1995 and November 1997. MEASUREMENTS AND RESULTS: We recorded all ICU-acquired infections using modified CDC criteria. VAP rates were reported per 1,000 patient-days, patient-days at risk, ventilator-days, and ventilator-days at risk. Of the 1,068 patients admitted, VAP developed in 106 (23.5%) of those mechanically ventilated. The incidence of the first episode of VAP was 22.8 per 1,000 patient-days (95% CI 18.7-27.6), 29.6 per 1,000 patient-days at risk (24.2-35.8), 35.7 per 1,000 ventilator-days (29.2-43.2), and 44.0 per 1,000 ventilator-days at risk (36.0-53.2). When considering all episodes of VAP (n=127), infection rates were 27.3 episodes per 1,000 ICU patient-days (95% CI 22.6-32.1) and 42.8 episodes per 1,000 ventilator-days (35.3-50.2). CONCLUSIONS: The method of reporting VAP rates has a significant impact on risk estimates. Accordingly, clinicians and hospital management in charge of patient-care policies should be aware of how to read and compare nosocomial infection rates.

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Benchmarking
  • Critical Care/methods/standards
  • Cross Infection/diagnosis/ epidemiology/etiology/prevention & control
  • Female
  • Hospital Mortality
  • Hospitals, University
  • Humans
  • Incidence
  • Infection Control/methods/standards
  • Intensive Care Units
  • Length of Stay/statistics & numerical data
  • Male
  • Middle Aged
  • Pneumonia/diagnosis/ epidemiology/etiology/prevention & control
  • Prospective Studies
  • Respiration, Artificial/ adverse effects
  • Risk Assessment
  • Risk Factors
  • Switzerland/epidemiology
  • Time Factors
Citation (ISO format)
EGGIMANN, Philippe et al. Ventilator-associated pneumonia: caveats for benchmarking. In: Intensive care medicine, 2003, vol. 29, n° 11, p. 2086–2089. doi: 10.1007/s00134-003-1991-9
Main files (1)
Article (Published version)
ISSN of the journal0342-4642

Technical informations

Creation2010-06-21 10:23:49 AM
First validation2010-06-21 10:23:49 AM
Update time2023-03-14 3:43:18 PM
Status update2023-03-14 3:43:18 PM
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