Neutrophil-to-albumin Ratio as a Prognostic Factor in Patients with Acute Ischemic Stroke


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Abstract

Background:Neutrophil-To-Albumin Ratio (NAR) is a novel inflammatory biomarker. However, the potential prognostic value of NAR in acute ischemic stroke (AIS) remains unclear. This study aimed to evaluate whether NAR levels correlated with the 3-month modified Rankin scale (mRS) in patients with AIS.

Methods:AIS patients were included in this retrospective study. NAR was calculated as the ratio of absolute neutrophil count to serum albumin level. Logistic regression analyses were used to investigate the effect of NAR on 3-month mRS of AIS. The predictive values of NAR, albumin level, and neutrophil count were compared utilizing receiver operating characteristic (ROC) curves. Moreover, subgroup analyses and interaction tests were conducted to evaluate the consistency of NAR’s effect on AIS prognosis.

Results:Of the 780 patients included, 403 (51.67%) had a poor clinical outcome (mRS 3-6) at 3 months. NAR was independently correlated to 3-month poor functional outcome after adjusting for confounders (Odds ratios (OR), 9.34; 95% confidence intervals (CI), 1.09 to 80.13; p =0.0417). Subgroup analysis showed a relative effect consistent with the overall population results, and no statistical interactions were found in the subgroups (all p for interaction > 0.05). The ROC curve showed that the prognosis-related cutoff value for NAR was 0.123, with corresponding specificity and sensitivity of 53.55% and 63.94%, respectively. When comparing the predictive power, NAR (0.590; 95%CI 0.549–0.630) exhibited the highest area under the curve (AUC) of ROC compared to neutrophils (0.584; 95%CI 0.543–0.624) and albumin (0.540; 95%CI 0.500–0.581).

Conclusion:There is a positive relationship between NAR levels and 3-month poor functional outcomes in AIS patients, supporting the potential of NAR as a readily available and economic serum biomarker for the early identification of AIS prognosis. Further studies are required to validate the prognostic value and clinical utility of the NAR.

About the authors

Jiajia Bao

Department of Neurology, West China Hospital, Sichuan University

Email: info@benthamscience.net

Yang Zhang

Department of Neurology, West China Hospital, Sichuan University

Email: info@benthamscience.net

Mengmeng Ma

Department of Neurology,, West China Hospital, Sichuan University

Email: info@benthamscience.net

Jian Wang

Department of Neurology, West China Hospital, Sichuan University

Email: info@benthamscience.net

Xin Jiang

Department of Neurology, West China Hospital, Sichuan University

Email: info@benthamscience.net

Jian Guo

Department of Neurology, West China Hospital, Sichuan University

Author for correspondence.
Email: info@benthamscience.net

Li He

Department of Neurology, West China Hospital, Sichuan University

Author for correspondence.
Email: info@benthamscience.net

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