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- W1978671623 abstract "PURPOSE: We sought to identify admission characteristics predicting mortality in elderly patients hospitalized with community-acquired pneumonia and to develop a prognostic staging system and discriminant rule.PATIENTS AND METHODS: We retrospectively analyzed data from 2,356 patients aged ≥65 years admitted with community-acquired pneumonia. Multivariable analyses of a derivation cohort (n = 1,000) identified characteristics associated with hospital mortality. A staging system and discriminant rule based on these characteristics were tested in a validation cohort (n = 1,356). Our discriminant rule was compared with a rule formulated from a heterogeneous adult population with community-acquired pneumonia.RESULTS: Hospital mortality rates were 9% (derivation cohort) and 12% (validation cohort). We identified five independent predictors of mortality: age ≥85 years [odds ratio 1.8 (95% confidence interval 1.1–3.1)], comorbid disease [odds ratio 4.1 (2.1–8.1)], impaired motor response [odds ratio 2.3 (1.4–3.7)], vital sign abnormality [odds ratio 3.4 (2.1–5.4)], and creatinine level ≥1.5 mg/dL [odds ratio 2.5 (1.5–4.2)]. These variables stratified patients into four distinct stages with increasing mortality in the derivation cohort (Stage 1, 2%; Stage 2, 7%; Stage 3, 22%; Stage 4, 45%; P = 0.001) as well as in the validation cohort (Stage 1, 4%; Stage 2, 11%; Stage 3, 23%; Stage 4, 41%; P = 0.001). The discriminant rule developed from the derivation cohort had greater overall accuracy (77.1%) in the validation cohort than a rule formulated from a heterogeneous adult population (68.0%, P = 0.001).CONCLUSION: Elderly patients with community-acquired pneumonia have characteristics at admission that can predict mortality. Our staging system and discriminant rule improve prognostic stratification of these patients." @default.
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- W1978671623 date "1999-01-01" @default.
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- W1978671623 title "A prognostic rule for elderly patients admitted with community-acquired pneumonia" @default.
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- W1978671623 doi "https://doi.org/10.1016/s0002-9343(98)00369-6" @default.
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