Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea

Abstract Background Uric acid has antioxidant properties, and several studies have suggested its neuroprotective effects. Despite reports of increased oxidative damage and decreased antioxidants in anxiety disorders, findings remain inconclusive. This study investigated the association between serum...

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Main Authors: Soohyun Park, Joo O. Kim, Gyu Nam Park, Jae Won Oh, San Lee
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Psychiatry
Subjects:
Online Access:https://doi.org/10.1186/s12888-025-06474-3
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author Soohyun Park
Joo O. Kim
Gyu Nam Park
Jae Won Oh
San Lee
author_facet Soohyun Park
Joo O. Kim
Gyu Nam Park
Jae Won Oh
San Lee
author_sort Soohyun Park
collection DOAJ
description Abstract Background Uric acid has antioxidant properties, and several studies have suggested its neuroprotective effects. Despite reports of increased oxidative damage and decreased antioxidants in anxiety disorders, findings remain inconclusive. This study investigated the association between serum uric acid levels and anxiety symptoms, stratified by sex, using nationwide data from South Korea. Methods Data were derived from the Korea National Health and Nutrition Examination Survey, which included 2,228 males and 2,805 females. Presence of anxiety symptoms was defined as a Generalized Anxiety Disorder 7-item scale (GAD-7) score of ≥ 10. Study participants were categorized into three groups based on serum uric acid levels: 1 (lowest) to 3 (highest). Multivariable logistic regression analyzed the association between uric acid levels and anxiety symptoms, stratified by sex. Results Compared to reference group 2, females in group 1 had increased anxiety symptoms (odds ratio (OR) 2.28, 95% confidence interval (CI) 1.48–3.49). When anxiety symptoms were defined as a GAD-7 score of ≥ 5, females in groups 1 (OR 1.68, 95% CI 1.30–2.16) and 3 (OR 1.35, 95% CI 1.04–1.74) both showed more anxiety symptoms than group 2, with a U-shaped relationship between uric acid levels and anxiety symptoms. In males, uric acid levels weren't significantly linked to anxiety symptoms. Conclusions This study indicates that low serum uric acid levels are associated with a higher prevalence of anxiety symptoms only in females, suggesting involvement of oxidative stress in anxiety disorders and its sex-based variation.
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spelling doaj-art-afc990167d8845e8954e21b9d0efe1732025-01-26T12:46:43ZengBMCBMC Psychiatry1471-244X2025-01-0125111310.1186/s12888-025-06474-3Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in KoreaSoohyun Park0Joo O. Kim1Gyu Nam Park2Jae Won Oh3San Lee4Yonsei University College of MedicineDepartment of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of MedicineDepartment of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of MedicineDepartment of Psychology, University of Utah Asia CampusDepartment of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of MedicineAbstract Background Uric acid has antioxidant properties, and several studies have suggested its neuroprotective effects. Despite reports of increased oxidative damage and decreased antioxidants in anxiety disorders, findings remain inconclusive. This study investigated the association between serum uric acid levels and anxiety symptoms, stratified by sex, using nationwide data from South Korea. Methods Data were derived from the Korea National Health and Nutrition Examination Survey, which included 2,228 males and 2,805 females. Presence of anxiety symptoms was defined as a Generalized Anxiety Disorder 7-item scale (GAD-7) score of ≥ 10. Study participants were categorized into three groups based on serum uric acid levels: 1 (lowest) to 3 (highest). Multivariable logistic regression analyzed the association between uric acid levels and anxiety symptoms, stratified by sex. Results Compared to reference group 2, females in group 1 had increased anxiety symptoms (odds ratio (OR) 2.28, 95% confidence interval (CI) 1.48–3.49). When anxiety symptoms were defined as a GAD-7 score of ≥ 5, females in groups 1 (OR 1.68, 95% CI 1.30–2.16) and 3 (OR 1.35, 95% CI 1.04–1.74) both showed more anxiety symptoms than group 2, with a U-shaped relationship between uric acid levels and anxiety symptoms. In males, uric acid levels weren't significantly linked to anxiety symptoms. Conclusions This study indicates that low serum uric acid levels are associated with a higher prevalence of anxiety symptoms only in females, suggesting involvement of oxidative stress in anxiety disorders and its sex-based variation.https://doi.org/10.1186/s12888-025-06474-3Uric acidAnxiety disorderAntioxidantSexKNHANES
spellingShingle Soohyun Park
Joo O. Kim
Gyu Nam Park
Jae Won Oh
San Lee
Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
BMC Psychiatry
Uric acid
Anxiety disorder
Antioxidant
Sex
KNHANES
title Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
title_full Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
title_fullStr Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
title_full_unstemmed Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
title_short Sex-based disparities in the association between uric acid levels and anxiety: a cross-sectional analysis of nationwide data in Korea
title_sort sex based disparities in the association between uric acid levels and anxiety a cross sectional analysis of nationwide data in korea
topic Uric acid
Anxiety disorder
Antioxidant
Sex
KNHANES
url https://doi.org/10.1186/s12888-025-06474-3
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