Hospital Acquired Pneumonia Prevention Initiative-2: Incidence of nonventilator hospital-acquired pneumonia in the United States

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Abstract

Background:

Because nonventilator hospital-acquired pneumonia (NV-HAP) is understudied, our purpose was to determine the incidence, overall burden, and level of documented pneumonia preventive interventions of NV-HAP in 24 U.S. hospitals.

Methods:

This retrospective chart review extracted NV-HAP cases as per the 2014 ICD-9-CM codes for pneumonia not present on admission and the 2013 Centers for Disease Control and Prevention case definition. Patient demographic data, outcomes, and documented preventive interventions were also collected.

Results:

We found 1,300 NV-HAP patients who acquired NV-HAP (rate, 0.12-2.28 per 1,000 patient days) across the 21 hospitals that completed the data collection. Most NV-HAP infections (70.8%) were acquired outside of intensive care units (ICUs); 18.8% required transfer into the ICU. In the 24 hours prior to diagnosis, most of the patients did not have fundamental hospital care associated with pneumonia prevention.

Conclusions:

This multicenter, nationwide study highlights the significant burden of NV-HAP in the U.S. acute care hospital setting. We found that NV-HAP occurred on every hospital unit, including in younger, healthy patients. This indicates that although some patients are clearly at higher risk, all patients carry some NV-HAP risk. Therapeutic interventions aimed at NV-HAP prevention are frequently not provided for patients in acute care hospitals.

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