Research Article: Risk Factors and Mortality of Elderly Patients with Hospital-Acquired Pneumonia of Carbapenem-Resistant Klebsiella pneumoniae Infection
Introduction:
Hospital-acquired pneumonia (HAP) is an infection of lung parenchyma caused by pathogens within the hospital environment. It is the second-most common nosocomial infection and the leading cause of death. The incidence of HAP varies from to more than cases per hospitalized patients. The incidence of HAP in Chinese is .% to .%. , Elderly patients are more likely to develop severe pneumonia due to decreased immunity, vomiting reflex disorders, weakened fever response, and cardiopulmonary dysfunction.
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