Only Half Of Deaths From Pneumonia Attributable To Acute Illness

Mortality in patients with community-acquired pneumonia is the result of acute illness in only half of cases.

 These results are from a study of 944 outpatients and 1,343 inpatients with clinical and radiographic evidence of pneumonia.

 The study was conducted by investigators from multiple institutions including the University of Pittsburgh in Pittsburgh, Pennsylvania, and Harvard Medical School in Boston, Massachusetts, United States.

 The investigators reviewed all of the deaths that occurred within 90 days of presentation and all events preceding death. Mortality was considered to be a result of pneumonia if pneumonia was an underlying or immediate cause of death or played a major role in the cause of death.

 Two hundred and eight of the patients (9 percent) died within 90 days. Immediate causes of death were respiratory in 38 percent, cardiac conditions in 13 percent and infectious conditions in 11 percent of the patients.

Underlying causes of death were neurological conditions in 29 percent, malignancies in 24 percent and cardiac conditions in 14 percent of patients. Mortality was related to pneumonia in 53 percent of the 208 deaths. These deaths were 7.7 times more likely to occur in the first 30 days after presentation compared with deaths that were unrelated to pneumonia.

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