The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults

IntroductionThe aim of this study is to analyse the association of socioeconomic status (SES) with cognitive performance, and the mediation effect of periodontal status in this relationship in the National Health and Nutrition Examination Survey (NHANES) database from 2011–2014.MethodsThe SES was ev...

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Main Authors: Heming Zhang, Hongxia Xiang, Lin Zhang, Zhiyang Chen, Wei Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Aging Neuroscience
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Online Access:https://www.frontiersin.org/articles/10.3389/fnagi.2025.1524268/full
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author Heming Zhang
Heming Zhang
Heming Zhang
Hongxia Xiang
Lin Zhang
Zhiyang Chen
Zhiyang Chen
Wei Liu
author_facet Heming Zhang
Heming Zhang
Heming Zhang
Hongxia Xiang
Lin Zhang
Zhiyang Chen
Zhiyang Chen
Wei Liu
author_sort Heming Zhang
collection DOAJ
description IntroductionThe aim of this study is to analyse the association of socioeconomic status (SES) with cognitive performance, and the mediation effect of periodontal status in this relationship in the National Health and Nutrition Examination Survey (NHANES) database from 2011–2014.MethodsThe SES was evaluated based on poverty-income ratio (PIR), occupation, educational level, and health insurance using latent class analysis. Multivariable logistic regressions were used to determine the association of cognitive performance, examined by Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) test, animal fluency test (AFT), and digit symbol substitution test (DSST), with SES, attachment loss (AL) and probing depth (PD). Multivariable linear regressions were used to explore the association of mean AL and mean PD with SES. A mediation analysis was conducted to examine the impact of mean AL and mean PD on the relationship between SES and cognitive performance.ResultsThe study included 1,812 participants aged 60 years or older. In the fully adjusted model, SES showed a positive correlation with all three cognitive tests. Meanwhile, mean AL [odds ratio (OR) = 1.61; 95% confidence interval (CI): 1.33 to 1.95] and mean PD (OR = 2.14; 95% CI: 1.54 to 2.96) were inversely related to the DSST scores, accounting for 12.17 and 6.91% of the relationship between SES and DSST, respectively. The mediation effect of periodontal status in this association was significant only in non-HSB participants or in younger participants.ConclusionSES was negatively associated with periodontal status in older adults in the United States. Furthermore, the link between SES and cognitive performance can be partially explained by periodontal status.
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spelling doaj-art-e0b6ad91cc7549e48155c2cdbe5b0a5c2025-08-20T02:09:51ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652025-06-011710.3389/fnagi.2025.15242681524268The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adultsHeming Zhang0Heming Zhang1Heming Zhang2Hongxia Xiang3Lin Zhang4Zhiyang Chen5Zhiyang Chen6Wei Liu7Department of Anesthesiology, The Second Affiliated Hospital of Air Force Medical University, Xi’an, ChinaDepartment of Cardiology, National Center of Gerontology, Beijing Hospital, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, ChinaDepartment of Anesthesiology, The 963 Hospital of the PLA Joint Logistics Support Force, Jiamusi, ChinaDepartment of Anesthesiology, The 963 Hospital of the PLA Joint Logistics Support Force, Jiamusi, ChinaDepartment of Cardiology, National Center of Gerontology, Beijing Hospital, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, ChinaDepartment of Anesthesiology, The Second Affiliated Hospital of Air Force Medical University, Xi’an, ChinaDepartment of Anesthesiology, The 963 Hospital of the PLA Joint Logistics Support Force, Jiamusi, ChinaDepartment of Rheumatology and Immunology, The Second Affiliated Hospital of Air Force Medical University, Xi’an, ChinaIntroductionThe aim of this study is to analyse the association of socioeconomic status (SES) with cognitive performance, and the mediation effect of periodontal status in this relationship in the National Health and Nutrition Examination Survey (NHANES) database from 2011–2014.MethodsThe SES was evaluated based on poverty-income ratio (PIR), occupation, educational level, and health insurance using latent class analysis. Multivariable logistic regressions were used to determine the association of cognitive performance, examined by Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) test, animal fluency test (AFT), and digit symbol substitution test (DSST), with SES, attachment loss (AL) and probing depth (PD). Multivariable linear regressions were used to explore the association of mean AL and mean PD with SES. A mediation analysis was conducted to examine the impact of mean AL and mean PD on the relationship between SES and cognitive performance.ResultsThe study included 1,812 participants aged 60 years or older. In the fully adjusted model, SES showed a positive correlation with all three cognitive tests. Meanwhile, mean AL [odds ratio (OR) = 1.61; 95% confidence interval (CI): 1.33 to 1.95] and mean PD (OR = 2.14; 95% CI: 1.54 to 2.96) were inversely related to the DSST scores, accounting for 12.17 and 6.91% of the relationship between SES and DSST, respectively. The mediation effect of periodontal status in this association was significant only in non-HSB participants or in younger participants.ConclusionSES was negatively associated with periodontal status in older adults in the United States. Furthermore, the link between SES and cognitive performance can be partially explained by periodontal status.https://www.frontiersin.org/articles/10.3389/fnagi.2025.1524268/fullsocioeconomic statusperiodontal statuscognitive performanceNHANESelderly adults
spellingShingle Heming Zhang
Heming Zhang
Heming Zhang
Hongxia Xiang
Lin Zhang
Zhiyang Chen
Zhiyang Chen
Wei Liu
The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
Frontiers in Aging Neuroscience
socioeconomic status
periodontal status
cognitive performance
NHANES
elderly adults
title The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
title_full The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
title_fullStr The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
title_full_unstemmed The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
title_short The effect of periodontal status in the associations between socioeconomic status and cognitive performance: a mediation analysis in older adults
title_sort effect of periodontal status in the associations between socioeconomic status and cognitive performance a mediation analysis in older adults
topic socioeconomic status
periodontal status
cognitive performance
NHANES
elderly adults
url https://www.frontiersin.org/articles/10.3389/fnagi.2025.1524268/full
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