Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)

Objectives: Type 2 diabetes mellitus (DM) is a risk factor for cognitive decline, but evidence from Irish population-based studies is lacking. The aim of this work was to investigate the association between DM and the risk of cognitive decline in the Irish Longitudinal Study on Ageing (TILDA). Desig...

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Main Authors: Marcia Regina Cominetti, Henrique Pott-Junior, Cristiane Cominetti, Raquel Gutiérrez Zúñiga, Roman Romero-Ortuno
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Diabetes Epidemiology and Management
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666970622000373
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author Marcia Regina Cominetti
Henrique Pott-Junior
Cristiane Cominetti
Raquel Gutiérrez Zúñiga
Roman Romero-Ortuno
author_facet Marcia Regina Cominetti
Henrique Pott-Junior
Cristiane Cominetti
Raquel Gutiérrez Zúñiga
Roman Romero-Ortuno
author_sort Marcia Regina Cominetti
collection DOAJ
description Objectives: Type 2 diabetes mellitus (DM) is a risk factor for cognitive decline, but evidence from Irish population-based studies is lacking. The aim of this work was to investigate the association between DM and the risk of cognitive decline in the Irish Longitudinal Study on Ageing (TILDA). Design: This is a longitudinal cohort study, totalling a 6-year follow-up. Setting and participants: TILDA is a nationally representative observational study of community-dwelling adults over 50 years old. Measurements: DM was assessed via self-reported medical diagnosis. Cognition was assessed with Montreal Cognitive Assessment (MoCA, baseline and wave 3) and the Mini-Mental State Examination (MMSE, all waves) total score and error count. We incorporated individuals’ variability as a random effect and used zero-inflated mixed-effects to model MMSE error counts as a function of DM longitudinally. The model was adjusted for age, sex, history of stroke, hypertension, and any emotional, nervous, or psychiatric problems. Results: A total of 3,687 participants were evaluated. At baseline, the prevalence of diabetes was 6.4%. Participants with DM had significantly lower MoCA and MMSE scores and higher error counts than those without DM. Age, male sex, DM, stroke, and hypertension were significantly associated with higher error counts in MMSE at baseline. Over six years, DM was significantly associated with an accelerated decline in cognition. Conclusion: Having DM predicted cognitive decline in TILDA participants over 6-years. These findings corroborate the importance of screening and managing DM in community-dwelling older adults to prevent future cognitive impairment.
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spelling doaj.art-3d3e9d84caf34f0fa4c8cabfb831382a2022-12-22T03:59:05ZengElsevierDiabetes Epidemiology and Management2666-97062022-07-017100087Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)Marcia Regina Cominetti0Henrique Pott-Junior1Cristiane Cominetti2Raquel Gutiérrez Zúñiga3Roman Romero-Ortuno4Department of Gerontology, Federal University of Sao Carlos, Rod. Washington Luis, Km 235. Monjolinho, CEP 13565-905, Brazil; The Global Brain Health Institute, Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland; Corresponding author at: Department of Gerontology, Federal University of São Carlos. Rod. Washington Luis, km 235 - São Carlos / SP – Brazil; Postal code: 13565-905; Phone: +55 16 33066663. Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland.Department of Medicine, Federal University of Sao Carlos, Rod. Washington Luis, Km 235. Monjolinho, CEP 13565-905, Brazil; Visiting Research Fellow, Department of Medicine (Geriatrics), Dalhousie University, Halifax, B3H 2E1, NS, CanadaNutritional Genomics Research Group. Graduate Program in Nutrition and Health, School of Nutrition, Federal University of Goiás, Goiânia, BrazilThe Global Brain Health Institute, Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, IrelandThe Global Brain Health Institute, Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland; Discipline of Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin, IrelandObjectives: Type 2 diabetes mellitus (DM) is a risk factor for cognitive decline, but evidence from Irish population-based studies is lacking. The aim of this work was to investigate the association between DM and the risk of cognitive decline in the Irish Longitudinal Study on Ageing (TILDA). Design: This is a longitudinal cohort study, totalling a 6-year follow-up. Setting and participants: TILDA is a nationally representative observational study of community-dwelling adults over 50 years old. Measurements: DM was assessed via self-reported medical diagnosis. Cognition was assessed with Montreal Cognitive Assessment (MoCA, baseline and wave 3) and the Mini-Mental State Examination (MMSE, all waves) total score and error count. We incorporated individuals’ variability as a random effect and used zero-inflated mixed-effects to model MMSE error counts as a function of DM longitudinally. The model was adjusted for age, sex, history of stroke, hypertension, and any emotional, nervous, or psychiatric problems. Results: A total of 3,687 participants were evaluated. At baseline, the prevalence of diabetes was 6.4%. Participants with DM had significantly lower MoCA and MMSE scores and higher error counts than those without DM. Age, male sex, DM, stroke, and hypertension were significantly associated with higher error counts in MMSE at baseline. Over six years, DM was significantly associated with an accelerated decline in cognition. Conclusion: Having DM predicted cognitive decline in TILDA participants over 6-years. These findings corroborate the importance of screening and managing DM in community-dwelling older adults to prevent future cognitive impairment.http://www.sciencedirect.com/science/article/pii/S2666970622000373CognitionDiabetesAgeingHypertensionStroke
spellingShingle Marcia Regina Cominetti
Henrique Pott-Junior
Cristiane Cominetti
Raquel Gutiérrez Zúñiga
Roman Romero-Ortuno
Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
Diabetes Epidemiology and Management
Cognition
Diabetes
Ageing
Hypertension
Stroke
title Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
title_full Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
title_fullStr Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
title_full_unstemmed Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
title_short Type 2 diabetes mellitus predicts cognitive decline: Evidence from the Irish longitudinal study on ageing (TILDA)
title_sort type 2 diabetes mellitus predicts cognitive decline evidence from the irish longitudinal study on ageing tilda
topic Cognition
Diabetes
Ageing
Hypertension
Stroke
url http://www.sciencedirect.com/science/article/pii/S2666970622000373
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