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  • Title: Performances of prognostic scoring systems in patients with healthcare-associated pneumonia.
    Author: Jeong BH, Koh WJ, Yoo H, Um SW, Suh GY, Chung MP, Kim H, Kwon OJ, Jeon K.
    Journal: Clin Infect Dis; 2013 Mar; 56(5):625-32. PubMed ID: 23155150.
    Abstract:
    BACKGROUND: There are limited data on the performance of the pneumonia severity index (PSI) and CURB-65 (confusion, urea, respiratory rate, blood pressure, age ≥65) score, which were originally developed for community-acquired pneumonia (CAP), for patients with healthcare-associated pneumonia (HCAP). METHODS: The performances of PSI and CURB-65 were retrospectively evaluated in patients with HCAP compared to patients with CAP using prospectively collected data between January 2008 and December 2010. RESULTS: In total, 938 patients hospitalized with pneumonia were eligible for this study, consisting of 519 (55%) with CAP and 419 (45%) with HCAP. The PSI and CURB-65 scores had similar trends of increasing mortality with worsening risk class in both the HCAP and CAP groups. In the HCAP group, however, the low-risk patients identified using CURB-65 had a higher aggregate 30-day mortality compared with the low-risk patients identified using PSI. Although the performances of PSI and CURB-65 in the HCAP group showed similar trends to those observed in the CAP group, the estimated areas under the receiver operating characteristic curve for PSI (0.679, 95% confidence interval [CI], .619-.739) and CURB-65 (0.599, 95% CI, .522-.675) in the HCAP group were significantly lower than those in the CAP group (0.835, 95% CI, .768-.759 for PSI and .686-.832 for CURB-65). CONCLUSIONS: The performances of PSI and CURB-65 for predicting 30-day mortality in patients with HCAP were comparable to those in patients with CAP. However, the discriminatory powers of PSI and CURB-65 for 30-day mortality were significantly lower in the HACP group than those in the CAP group.
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