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Universitas Hasanuddin
Research output:Contribution to journalArticlepeer-review

C-reactive protein as predictors of mortality in elderly pneumonia: a survival analysis

Malik S.H.S.

Gazzetta Medica Italiana Archivio Per Le Scienze Mediche

Q4
Published: 2025

Abstract

BACKGROUND: Pneumonia has a higher risk in the elderly due to lower immunity. Pneumonia in the elderly is also found to have atypical manifestations. Pneumonia in the elderly is also associated with a higher risk of death. Therefore, it is important to assess the severity and prognosis of elderly pneumonia patients using biomarkers that are simple and easy to examine. This research was conducted to determine the predictive value of C-reactive protein (CRP) levels on the severity and prediction of mortality in elderly pneumonia patients.METHODS: A retrospective cohort study of elderly pneumonia patients hospitalized at RSUP Dr. Wahidin Sudirohusodo from January to December 2023. Patient characteristics and clinical data were collected from inpatient medical records retrospectively. Data analysis used the Kaplan Meier survival curve and Youden index to determine predictors of severity and mortality in elderly pneumonia patients.RESULTS: A total of 654 elderly pneumonia patients were analyzed in this study. The results of the ROC curve analysis show that the AUC value for the CRP variable is 0.538 with the best cut-off value being 15.45. The results showed that there was a significant difference, patients with high levels of CRP had a significantly shorter survival time compared to patients with low CRP values.CONCLUSIONS: CRP can be used as predictors of severity and mortality in elderly pneumonia patients.

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MedicineSciences
PneumoniaSciences
Youden's J statisticSciences
Survival analysisSciences
Internal medicineSciences
Medical recordSciences
CohortSciences
Retrospective cohort studySciences
Cohort studySciences
Predictive valueSciences
Area under the curveSciences
Proportional hazards modelSciences
Mortality rateSciences
Receiver operating characteristicSciences
Predictive value of testsSciences
Severity of illnessSciences
Multivariate analysisSciences
Survival rateSciences
Area under curveSciences
Risk of mortalitySciences
Risk factorSciences
Intensive care medicineSciences
Pneumonia severity indexSciences