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Updated: Oct 11, 2025

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
Published on: June 28, 2018
Factors associated with bronchopulmonary aspiration: a national-based study
Jaqueline Helena Tanner1, Cristina Mara Zamarioli1, Magda Machado de Miranda Costa2
1Universidade de São Paulo. Ribeirão Preto, São Paulo, Brazil.
Bronchopulmonary aspiration in Brazil has a low prevalence (0.21%) but significantly impacts patients. Factors like age, region, and healthcare setting influence outcomes and mortality risk.
Area of Science:
- Public Health
- Epidemiology
- Healthcare Quality
Background:
- Bronchopulmonary aspiration is a significant concern in healthcare settings.
- Understanding its prevalence and risk factors is crucial for patient safety.
Purpose of the Study:
- To determine the prevalence of bronchopulmonary aspiration in Brazil.
- To identify factors associated with aspiration events.
- To analyze variables linked to mortality from aspiration.
Main Methods:
- Cross-sectional and analytical study design.
- Analysis of incident notifications from the Health Surveillance Notification System (2014-2018).
Main Results:
- A prevalence rate of 0.21% for bronchopulmonary aspiration was observed (553 cases out of 264,590 notifications).
- Associations were found with age, ethnicity, medical diagnosis, region, service type, health unit, and patient outcomes.
- Independent predictors of death included residing in North/South regions, being elderly, and receiving care at night.
Conclusions:
- Bronchopulmonary aspiration has a low reported prevalence but carries a negative impact on patient health.
- Identifying associated factors and predictors of mortality can inform targeted prevention strategies.
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