The association between red blood cell distribution width-to-albumin ratio and risk of depression: A cross-sectional analysis of NHANES

IF 4.9 2区 医学 Q1 CLINICAL NEUROLOGY Journal of affective disorders Pub Date : 2025-03-12 DOI:10.1016/j.jad.2025.03.037
Haobiao Liu , Rongqi Xiang , Zhuohang Chen
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Abstract

Background

The red blood cell distribution width-to-albumin ratio (RAR) serves as an indicator of systemic inflammation and nutritional status. This study examines the relationship between RAR and depressive disorder in U.S. adults, utilizing data from the National Health and Nutrition Examination Survey (NHANES).

Methods

We applied logistic regression to evaluate the link between RAR and depressive risk, with its corresponding odds ratios (OR) and 95 % confidence intervals (CI) calculated. Restricted cubic spline (RCS) was adopted to assess the potential linear association, while the receiver operating characteristic (ROC) curve was used to evaluate the ability of RAR to predict the depressive risk, with the result presented as an area under the curve (AUC).

Results

After adjusting for relevant covariates, a positive association between RAR and clinically relevant depression persisted (OR = 1.33, 95 % CI: 1.18–1.51, P < 0.001). Participants in the highest RAR quartile exhibited a greater risk of clinically relevant depression than those in the lowest quartile (OR = 1.36, 95 % CI: 1.10–1.67, P = 0.005). A linear relationship between RAR and clinically relevant depression was identified (P for non-linear = 0.473), with RAR showing a strong predictive ability for depressive risk (AUC = 0.7467). Stratified analysis showed significant interactions among smoking (P = 0.045), marital status (P < 0.001), and RAR's effect on depression outcome.

Conclusions

Elevated RAR is independently linked to clinically relevant depression, indicating its potential as a novel biomarker for mental health risk assessment. Further longitudinal studies are necessary to establish causality and evaluate its clinical relevance.
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来源期刊
Journal of affective disorders
Journal of affective disorders 医学-精神病学
CiteScore
10.90
自引率
6.10%
发文量
1319
审稿时长
9.3 weeks
期刊介绍: The Journal of Affective Disorders publishes papers concerned with affective disorders in the widest sense: depression, mania, mood spectrum, emotions and personality, anxiety and stress. It is interdisciplinary and aims to bring together different approaches for a diverse readership. Top quality papers will be accepted dealing with any aspect of affective disorders, including neuroimaging, cognitive neurosciences, genetics, molecular biology, experimental and clinical neurosciences, pharmacology, neuroimmunoendocrinology, intervention and treatment trials.
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