• Erxing Tao, Zhixin Liu, Yihao Liu, Chengyun Wang, Genbo Huang, Chunhua Xu, and Zihan Ding.
• Department of Neurosurgery, the 1(st) affiliated hospital, Jiangxi Medical College, Nanchang University, 17 Yongwai Street, Nanchang 330006, Jiangxi, China.
• World Neurosurg. 2024 Dec 6.

ObjectiveTo evaluate the effects of admission serum C-reactive protein-to-albumin ratio (CAR) in traumatic spinal cord injury (TSCI) severity evaluation and prognosis.MethodsWe included 402 TSCI patients from two hospitals and collected relevant clinical and laboratory data. The effects of CAR on the prognosis of TSCI were explored using univariate and multivariate logistic regression analyses. The predictive values of different indicators were compared by evaluating the areas under the receiver operating characteristic curve (AUC).ResultsWe classified 224 (55.7%) patients as severe TSCI (AIS grades A-B), and 178 (44.3%) patients as non-severe TSCI (AIS grades C-E) according to the American Spinal Cord Injury Society Impairment Scale (AIS). Further investigation into the correlation between CRP, CAR, and serum albumin with the AIS grade showed that the admission CRP and CAR decreased in an AIS grade-dependent manner, while serum albumin increased in an AIS grade-dependent manner. Of the total patients, 226 (56.2%) were categorised as having a good clinical outcome based on AIS grade at the 1-year follow-up. Serum CAR decreased as follow-up AIS grade decreased. Serum CAR was more strongly correlated with follow-up AIS grade than serum CRP and serum albumin alone. Multivariate logistic regression analyses showed that injury severity and CAR were independent risk factors for poor prognosis. The AUC of serum CAR was 0.749 higher than that of serum CRP (AUC=0.736) and serum albumin (AUC=0.719).ConclusionSerum CAR is a readily available biomarker for assessing the severity of TSCI and predicting prognosis, which is clinically relevant for the functional recovery of patients with TSCI.Copyright © 2024. Published by Elsevier Inc.

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