Relationship Between Neutrophil-Lymphocyte Ratio (NLR) and CRP-Albumin Ratio (CAR) with Mortality in Geriatric Patients Admitted from the Emergency Department
Ali İhsan Kilci1, Yunus Emre Çıkrıkçı2, Müberra Çakıcı Tosun3, Hakan Hakkoymaz1, Murat Tepe1, Muhammed Semih Gedik11Department of Emergency Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Türkiye, 2Department of Emergency Medicine, Goksun State Hospital, Kahramanmaras, Türkiye, 3Department of Emergency Medicine, Kayseri Provincial Health Directorate, Kayseri, Türkiye
Objectives: This study aims to compare C-reactive protein/albumin ratio (CAR) and neutrophil/lymphocyte ratio (NLR) in predicting mortality in emergency department patients aged 65+. Methods: This prospective study examined patients aged 65+ presenting to the emergency department from September- December 2021. Neutrophil, lymphocyte, C-reactive protein, and albumin measurements were obtained to calculate CAR and NLR and investigate their relationship with mortality. Results: Of 609 patients studied, 282 (46.3%) were admitted to inpatient units and 327 (53.7%) to intensive care. 510 patients (83.7%) were discharged, while 99 (16.3%) died within 4 weeks. Median CAR was significantly higher in deceased patients (3.23) compared to survivors (0.48). Similarly, median NLR was significantly higher in deceased patients (9.55) versus survivors (5.64). Conclusion: Both CAR and NLR effectively predict mortality in elderly emergency patients, with CAR demonstrating superior effectiveness as a biomarker for determining mortality risk compared to NLR. These findings suggest that CAR could be a valuable tool for risk stratification in the emergency care of elderly patients. Keywords: Emergency Department, CRP/Albumin Ratio, Neutrophil/Lymphocyte Ratio
Cite This Article
Kilci A, Çıkrıkçı Y, Çakıcı Tosun M, Hakkoymaz H, Tepe M, Gedik M. Relationship Between Neutrophil-Lymphocyte Ratio (NLR) and CRP-Albumin Ratio (CAR) with Mortality in Geriatric Patients Admitted from the Emergency Department. EJMI. 2025; 9(3): 124-130
Corresponding Author: Ali İhsan Kilci