• Yifei Wang, Yue Gong, Du Chen, Feng Xu, and Peng Yang.
• The First Affiliated Hospital of Soochow University, Suzhou, China.
• World Neurosurg. 2023 May 1; 173: e234e240e234-e240.

BackgroundThe C-reactive protein/albumin ratio (CAR), Glasgow coma scale score, and blood glucose level serve as reference values to evaluate the prognosis of critically ill patients. However, the prognostic significance of the admission serum CAR for patients with moderate to severe traumatic brain injury (TBI) has remained unclear. We examined the effect of the admission CAR on the outcomes of patients with moderate to severe TBI.MethodsThe clinical data from 163 patients with moderate to severe TBI were collected. Before analysis, the patients' records were anonymized and de-identified. Multivariate logistic regression analyses were used to investigate the risk factors and construct a prognostic model of in-hospital mortality. The predictive value of different models was compared by evaluating the areas under the receiver operating characteristic curve.ResultsOf the 163 patients, those who had not survived (nonsurvivors, n = 34) had had a higher CAR than that of the survivors (3.8 vs. 2.6; P < 0.001). The results of multivariate logistic regression analysis indicated that the Glasgow coma scale score (odds ratio [OR], 0.430; P = 0.001), blood glucose (OR, 1.290; P = 0.017), and CAR (OR, 1.609; P = 0.036) were independent risk factors for mortality and were used to construct the prognostic model. The area under the receiver operating characteristic curve of the prognostic model was 0.922 (95% confidence interval, 0.875-0.970), higher than that for the CAR (P = 0.0409). We had screened 195 patients for inclusion in the present study and excluded 32 patients.ConclusionsThe CAR can serve as an independent risk factor of mortality for patients with moderate to severe TBI. Incorporating CAR into a predictive model could contribute to efficiently predicting the prognosis of adults with moderate to severe TBI.Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.

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