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CiteWeb id: 20090000103

CiteWeb score: 4548

DOI: 10.1056/NEJM199701233360402

Background There is considerable variability in rates of hospitalization of patients with community-acquired pneumonia, in part because of physicians' uncertainty in assessing the severity of illness at presentation. Methods From our analysis of data on 14,199 adult inpatients with community-acquired pneumonia, we derived a prediction rule that stratifies patients into five classes with respect to the risk of death within 30 days. The rule was validated with 1991 data on 38,039 inpatients and with data on 2287 inpatients and outpatients in the Pneumonia Patient Outcomes Research Team (PORT) cohort study. The prediction rule assigns points based on age and the presence of coexisting disease, abnormal physical findings (such as a respiratory rate of >30 per minute or a temperature of >40°C), and abnormal laboratory findings (such as a pH 30 mg per deciliter [11 mmol per liter] or a sodium concentration <130 mmol per liter) at presentation. Results There were no si...

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