Comparison of Scoring Systems (SMART-COP vs. CURB 65) in Predicting the Need for Vasopressor and Mechanical Ventilation Support in Patients with Community-acquired Pneumonia

BACKGROUND: Community-acquired pneumonia (CAP) is one of the major causes of morbidity and mortality worldwide, and it often requires intensive care interventions with vasopressor support and mechanical ventilation. Accurate risk stratification is essential for optimising clinical decision-making. While both SMART-COP and CURB-65 scoring systems are used for CAP severity assessment, their predictive abilities for intensive care needs remain debated. AIMS: The aim of the study was to see if SMART-COP or CURB-65 more accurately predicts the need for vasopressors and ventilators in CAP patients. MATERIALS AND METHODS: This prospective observational study observed patients over a 9-month period at SRM Medical College Hospital and Research Center, enrolling 98 adult CAP patients. Clinical and laboratory parameters were recorded at admission, and patients were stratified using SMART-COP and CURB-65 scores. Statistical analyses included sensitivity, specificity, Chi-square tests, logistic regression, and receiver operating characteristic (ROC) curve analysis. RESULTS: SMART-COP demonstrated superior sensitivity for predicting vasopressor support (85.7%) and mechanical ventilation (80.0%) compared to CURB-65 (42.9% and 36.0%, respectively). The area under the ROC curve for SMART-COP was higher (0.782 for vasopressor support, 0.745 for mechanical ventilation) than CURB-65 (0.612 and 0.595, respectively). Logistic regression confirmed SMART-COP as a stronger predictor of critical care interventions (P < 0.001). CONCLUSION: SMART-COP more accurately predicts the need for vasopressors and ventilators in CAP patients than CURB-65. These findings support its integration into clinical protocols for better risk stratification and resource allocation. Further studies are required to validate these findings in larger cohorts.