Clinical development of pneumonia occurring at 48 hours after admission and not incubating at the time of hospitalization, and occurs at the rate of 5 to 10 cases per 1000 hospital discharges.
300,000 cases annually in the U.S.
Second most common nosocomial infection after urinary tract infections, accounting for 31% of all nosocomial infections.
The second most common type of infection acquired in the hospital, behind UTI, with 40% of cases being postoperative.
Incidence highest in ICU’s.
Mortality 30-70%.
Incidence 3.2 cases/1000 ICU days in non-ventilated patients and 34.4 cases/1000 Intensive Care Unit (ICU) days in ventilated patients.
Associated with additional 12 days and ventilation therapy, double mortality and prolonged ICU stay by 6-19 days per patient.
Staphylococcal and Enterobacteria are more prevalent in such patients.