CURB-65 for community-acquired pneumonia severity using severity index

Area of Science:

• Pulmonology
• Critical Care Medicine
• Epidemiology

Background:

• Critical community-acquired pneumonia (CAP) requires accurate risk stratification for effective management.
• Current tools like CURB-65 and Pneumonia Severity Index (PSI) aid in treatment decisions but require comparative analysis.

Purpose of the Study:

• To compare the efficacy of CURB-65 and PSI in predicting 30-day mortality and intensive care unit (ICU) admission in CAP patients.
• To evaluate the clinical applicability and sensitivity of both scoring systems.

Main Methods:

• A retrospective analysis of 320 CAP patients was conducted.
• CURB-65 and PSI scores were calculated for each patient.
• Performance metrics including sensitivity, specificity, and Area Under the Curve (AUC) for mortality prediction were assessed.

Main Results:

• PSI demonstrated superior sensitivity (92.5%) compared to CURB-65 (78.0%) for predicting 30-day mortality.
• PSI achieved a higher AUC for mortality prediction (0.84 vs. 0.79).
• CURB-65 showed high specificity but lower emergency applicability (65.4%) than PSI (88.2%).

Conclusions:

• PSI is a more effective tool for identifying CAP patients suitable for outpatient management.
• CURB-65 remains useful for high-risk patient triage in resource-limited or high-acuity settings.
• These findings support PSI as the preferred risk stratification tool for CAP outpatient decisions.