Value of the Pneumonia Severity Index in Assessment of Community-Acquired Pneumonia

Chien-Chung Lin ； Cheng-Hung Lee ； Chiung-Zuei Chen ； Yuan-Chin Chu ； Tsung-Jen Hung ； Han-Yu Chang ； Tzuen-Ren Hsiue

《Journal of the Formosan Medical Association》 106卷3期 (2007/03) Pp. 164-167

https://doi.org/10.29828/JFMA.200703.0012

並列摘要

Background and Purpose: The value of the Pneumonia Severity Index (PSI) in predicting the mortality of patients with community-acquired pneumonia has not been reported in Taiwan. This study investigated the value of this scoring system in estimating mortality of inpatients with community-acquired pneumonia.
Methods: This was a prospective observational study of 118 inpatients and a retrospective chart review of 115 inpatients with radiographically-confirmed community-acquired pneumonia treated at a tertiary referral medical center in southern Taiwan. Patients were stratified into 5 risk classes according to PSI score. Data on demographic characteristics, comorbidities baseline clinical and laboratory features, in-hospital mortality and length of hospital stay were analyzed. Results: The mortality rates according to risk classification were 0% for class Ⅰ and Ⅱ, 2.5% for class Ⅲ, 8.2% for class Ⅳ, and 31.2% for class Ⅴ. A significant correlation was found between these risk classes and medical outcome (p＜0.001). The length of hospital stay was significantly associated with risk class, and ranged from 6.3 days for class Ⅰ patients to 18 days for class Ⅴ (p ＜0.001).
Conclusion: The PSI provided a useful prediction of medical outcome in patients with community-acquired pneumonia. To decrease unnecessary admission, further prospective studies are needed to determine whether outpatient therapy is appropriate for class Ⅰ or class Ⅱ patients with community-acquired pneumonia.

並列關鍵字

Community-acquired infections ； Mortality ； Pneumonia, bacterial ； Predictive value of tests ； Severity of illness index