Journal of general internal medicine
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Multicenter Study Comparative Study
Comparison of a disease-specific and a generic severity of illness measure for patients with community-acquired pneumonia.
To compare the performances of a disease-specific severity of illness index and a prototypical generic severity of illness measure, MedisGroups Admission Severity Groups (ASGs), for patients with community-acquired pneumonia. ⋯ The PSI provided more accurate estimates of hospital mortality and classified different hospital outliers for mortality than did the generic severity of illness measure for patients with community-acquired pneumonia.