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ORIGINAL RESEARCH article

Front. Nutr.
Sec. Nutrition and Metabolism
Volume 11 - 2024 | doi: 10.3389/fnut.2024.1481155

Elevated Uric Acid to Serum Albumin Ratio: A Predictor of Short-Term Outcomes in Chinese Heart Failure Patients

Provisionally accepted
Xianling Liu Xianling Liu 1Aihui Chu Aihui Chu 2Xiahao Ding Xiahao Ding 3*
  • 1 Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, Jiangsu 210029, China, Nanjing, China
  • 2 Department of Nursing, The First Affiliated Hospital of Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, Jiangsu 210029, China, Nanjing, China
  • 3 Department of Anesthesiology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, No. 321 Zhongshan Road, 210008, China, Nanjing, China

The final, formatted version of the article will be published soon.

    Background: The prognostic value of the uric acid to albumin ratio (UAR) in heart failure (HF) remains underexplored. The objective of this research was to investigate the link between UAR and short-term outcomes in Chinese HF patients. Methods: We analyzed data from 1893 HF patients, out of an initial cohort of 2008, who had available UAR measurements. The skewed distribution of UAR data was addressed by applying a Log-10 (lg) transformation and stratifying patients into three groups accordingly (low to high). The final outcome was identified as mortality or hospital readmission within 28 days. We employed restricted cubic spline analysis (RCS), Kaplan-Meier survival curves, and Cox proportional hazards models to evaluate the link between UAR and short-term outcomes. Results: Among 1893 patients with HF [ ≥ 70 years, 1382 (73.0%); female, 1100 (58.1%)], the incidence of 28-day outcome was 8.6%. The RCS analysis suggested a positive relationship between lg(UAR) and 28-day outcomes, with no evidence of nonlinearity (P = 0.008). The cumulative incidence of 28-day readmission/death indicated that patients in the tertile 3 faced a significantly elevated risk of adverse outcomes (P < 0.001). Cox proportional hazards models showed that an elevated UAR was associated with a greater likelihood of 28-day mortality or hospital readmission (HR = 2.433, 95% CI: 1.638–3.615, P < 0.001). Even after accounting for possible confounding variables, the result still existed (HR = 1.594, 95% CI: 1.032–2.462, P = 0.036). Moreover, the associations were consistent in various subgroups, and sensitivity analysis. (all P > 0.05). Conclusion: Increased UAR correlates with a heightened risk of short-term death or hospital readmission in Chinese individuals suffering from HF. Maintaining a relatively lower UAR could potentially improve the clinical prognosis for these patients.

    Keywords: uric acid to serum albumin ratio (UAR), Heart failure (HF), short-term outcomes, Uric Acid (UA), Serum albumin (SA)

    Received: 15 Aug 2024; Accepted: 14 Nov 2024.

    Copyright: © 2024 Liu, Chu and Ding. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Xiahao Ding, Department of Anesthesiology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, No. 321 Zhongshan Road, 210008, China, Nanjing, China

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