Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study

Abstract Background The weight-adjusted waist index (WWI) is a new way to measure central obesity, reflecting body fat distribution more effectively. The association between WWI and depression in individuals with diabetes is still not well understood. This study explores this association in diabetic...

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Main Authors: Mingfeng Ye, Jizhao Yao, Huanliang Huang, Dexiong Chen
Format: Article
Language:English
Published: BMC 2025-08-01
Series:BMC Psychiatry
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Online Access:https://doi.org/10.1186/s12888-025-07153-z
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author Mingfeng Ye
Jizhao Yao
Huanliang Huang
Dexiong Chen
author_facet Mingfeng Ye
Jizhao Yao
Huanliang Huang
Dexiong Chen
author_sort Mingfeng Ye
collection DOAJ
description Abstract Background The weight-adjusted waist index (WWI) is a new way to measure central obesity, reflecting body fat distribution more effectively. The association between WWI and depression in individuals with diabetes is still not well understood. This study explores this association in diabetic patients. Methods This study involved adult participants diagnosed with diabetes mellitus in NHANES 2009–2018. We explored the association between WWI and depression through multivariate logistic regression analysis, subgroup analyses, interaction tests, and smoothed curve-fitting methods. Results In Model 3, this study found a significant positive association between WWI and depression among patients with diabetes (OR = 1.38, 95% CI: 1.17–1.63). In the smoothed curve fitting analysis, a nonlinear relationship between WWI and depression was observed, with an inflection point at 12.31. Subgroup analysis indicated that this association was influenced by the poverty income ratio (PIR), with a stronger association observed among diabetic patients with PIR ≥ 1, < 3, and PIR ≥ 3. Conclusions Among patients with diabetes, WWI was significantly positively associated with the prevalence of depression. This association was more pronounced among diabetic patients with PIR ≥ 1, < 3, and PIR ≥ 3. These findings suggest that WWI may be a relevant factor for physicians to consider when assessing depressive symptoms in patients with diabetes.
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spelling doaj-art-45d65c1eed204d60a7198e7a2f7ad8a82025-08-24T11:42:50ZengBMCBMC Psychiatry1471-244X2025-08-012511910.1186/s12888-025-07153-zAssociation between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional studyMingfeng Ye0Jizhao Yao1Huanliang Huang2Dexiong Chen3Department of General Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical UniversityDepartment of Dermatology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical UniversityDepartment of General Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical UniversityDepartment of General Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical UniversityAbstract Background The weight-adjusted waist index (WWI) is a new way to measure central obesity, reflecting body fat distribution more effectively. The association between WWI and depression in individuals with diabetes is still not well understood. This study explores this association in diabetic patients. Methods This study involved adult participants diagnosed with diabetes mellitus in NHANES 2009–2018. We explored the association between WWI and depression through multivariate logistic regression analysis, subgroup analyses, interaction tests, and smoothed curve-fitting methods. Results In Model 3, this study found a significant positive association between WWI and depression among patients with diabetes (OR = 1.38, 95% CI: 1.17–1.63). In the smoothed curve fitting analysis, a nonlinear relationship between WWI and depression was observed, with an inflection point at 12.31. Subgroup analysis indicated that this association was influenced by the poverty income ratio (PIR), with a stronger association observed among diabetic patients with PIR ≥ 1, < 3, and PIR ≥ 3. Conclusions Among patients with diabetes, WWI was significantly positively associated with the prevalence of depression. This association was more pronounced among diabetic patients with PIR ≥ 1, < 3, and PIR ≥ 3. These findings suggest that WWI may be a relevant factor for physicians to consider when assessing depressive symptoms in patients with diabetes.https://doi.org/10.1186/s12888-025-07153-zWeight-adjusted waist indexObesityDepressionDiabetesNHANES
spellingShingle Mingfeng Ye
Jizhao Yao
Huanliang Huang
Dexiong Chen
Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
BMC Psychiatry
Weight-adjusted waist index
Obesity
Depression
Diabetes
NHANES
title Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
title_full Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
title_fullStr Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
title_full_unstemmed Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
title_short Association between weight-adjusted waist index and depression in adults with diabetes: a cross-sectional study
title_sort association between weight adjusted waist index and depression in adults with diabetes a cross sectional study
topic Weight-adjusted waist index
Obesity
Depression
Diabetes
NHANES
url https://doi.org/10.1186/s12888-025-07153-z
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AT jizhaoyao associationbetweenweightadjustedwaistindexanddepressioninadultswithdiabetesacrosssectionalstudy
AT huanlianghuang associationbetweenweightadjustedwaistindexanddepressioninadultswithdiabetesacrosssectionalstudy
AT dexiongchen associationbetweenweightadjustedwaistindexanddepressioninadultswithdiabetesacrosssectionalstudy