Abstract
Objective: To compare the CURB-65 and CURBS-65 scoring systems for predicting the severity of community-acquired pneumonia (CAP).
Methods: The study recruited 150 patients using consecutive sampling, following the inclusion criteria, with pneumonia in the medical wards of POF Hospital, Wah Cantt, Pakistan, from April 2024 to July 2024. The study’s inclusion criteria comprised patients above 18 years of age with a clinical diagnosis of CAP and who were admitted to medical wards, High Dependency Units (HDU), and ICU. All participants, including their guardians, gave written informed consent for the study usage or participation. All data were collected by the study author using a PACS system and by analysing patient data from hospital documents. Data analysis was done via SPSS 29.
Results: The mean age of the patients was 65.72 years. Among them, 60 were women and 90 were men. The mean CURB-65 and CURBS-65 scores in males were 1.81 and 2.33, respectively, whereas in females, they were 1.57 and 2.13, respectively. The relationships between length of stay, age, assisted ventilation, mortality, CURB-65, and CURBS-65 were statistically significant. The ROC curve showed that CURB-65 revealed more reliable results than CURBS-65.
Conclusion: In the evaluation of mortality in CAP by CURB-65 and CURBS-65, CURB-65 had a higher sensitivity and overall predictive capability.
Keywords: Community-Acquired Pneumonia, CURB-65, CURBS-65, Mortality Prediction, Severity Scoring, ROC Curve
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Copyright (c) 2026 Muhammad Walleed Khan, Riffat Yasmin, Kanwal Shahid, Sumaira Iqbal, Sohaib Ahmed, Aysha Rani

