Achieving and sustaining ventilator-associated pneumonia-free time among intensive care units (ICUs): evidence from the Keystone ICU Quality Improvement Collaborative.

Our retrospective analysis of the Michigan Keystone intensive care unit (ICU) collaborative demonstrated that adult ICUs could achieve and sustain a zero rate of ventilator-associated pneumonia (VAP) for a considerable number of ventilator and calendar months. Moreover, the results highlight the importance of adjustment for ventilator-days before comparing VAP-free time among ICUs.