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Lipoprotein levels and statin treatment related to dementia and cognitive decline in individuals with type 2 diabetes : an observational analysis from the ADVANCE study

af Geijerstam, Peder ; Chalmers, John ; Pikkemaat, Miriam LU orcid ; Peters, Ruth ; Marre, Michel ; Mancia, Giuseppe LU ; Woodward, Mark and Harris, Katie (2025) In Cardiovascular Diabetology 24(1).
Abstract

Introduction: Studies on the association between lipid levels and lipid-lowering treatment and the risk of dementia and/or cognitive decline (CD) have shown conflicting results and are few in individuals with type 2 diabetes (T2D). The aim was to evaluate the relationship of baseline LDL cholesterol levels and statin treatment with the development of dementia/CD in patients with T2D from the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation trial. Methods: Dementia was diagnosed using the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV), and CD was defined as at least a 3-point decrement in the Mini Mental State Examination score. Exposures were baseline LDL... (More)

Introduction: Studies on the association between lipid levels and lipid-lowering treatment and the risk of dementia and/or cognitive decline (CD) have shown conflicting results and are few in individuals with type 2 diabetes (T2D). The aim was to evaluate the relationship of baseline LDL cholesterol levels and statin treatment with the development of dementia/CD in patients with T2D from the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation trial. Methods: Dementia was diagnosed using the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV), and CD was defined as at least a 3-point decrement in the Mini Mental State Examination score. Exposures were baseline LDL cholesterol levels, statin treatment at baseline, and statin treatment initiation during the first 18 months of follow-up. Multinomial logistic regression was used to estimate the odds ratio (OR) and 95% CI for the composite of dementia/CD. Results: Of 11,140 participants, 1827 (16.4%) developed dementia/CD over the 5-year follow up. The OR (95% CI) of dementia/CD were 1.06 (1.00–1.14) per standard deviation higher in baseline LDL cholesterol and 0.90 (0.79–1.03) for participants with vs without statin treatment. Conclusion: We observed an association between LDL levels, but not statin treatment, and incident dementia/CD. Although causality cannot be determined by our study, the results are in line with multiple randomised controlled trials. However, to understand the long-term effects of lipid levels and statin treatment on dementia/CD, studies of longer follow-up are still needed.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cholesterol, Cognitive decline, Dementia, Diabetes, Diabetes complications, Lipids, Lipoproteins, Type 2 diabetes
in
Cardiovascular Diabetology
volume
24
issue
1
article number
340
publisher
BioMed Central (BMC)
external identifiers
  • pmid:40826451
  • scopus:105013490295
ISSN
1475-2840
DOI
10.1186/s12933-025-02894-3
language
English
LU publication?
yes
id
be8e5e8b-fced-48a7-8ea6-4cf089f30d71
date added to LUP
2025-10-03 13:05:09
date last changed
2025-10-04 03:00:02
@article{be8e5e8b-fced-48a7-8ea6-4cf089f30d71,
  abstract     = {{<p>Introduction: Studies on the association between lipid levels and lipid-lowering treatment and the risk of dementia and/or cognitive decline (CD) have shown conflicting results and are few in individuals with type 2 diabetes (T2D). The aim was to evaluate the relationship of baseline LDL cholesterol levels and statin treatment with the development of dementia/CD in patients with T2D from the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation trial. Methods: Dementia was diagnosed using the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV), and CD was defined as at least a 3-point decrement in the Mini Mental State Examination score. Exposures were baseline LDL cholesterol levels, statin treatment at baseline, and statin treatment initiation during the first 18 months of follow-up. Multinomial logistic regression was used to estimate the odds ratio (OR) and 95% CI for the composite of dementia/CD. Results: Of 11,140 participants, 1827 (16.4%) developed dementia/CD over the 5-year follow up. The OR (95% CI) of dementia/CD were 1.06 (1.00–1.14) per standard deviation higher in baseline LDL cholesterol and 0.90 (0.79–1.03) for participants with vs without statin treatment. Conclusion: We observed an association between LDL levels, but not statin treatment, and incident dementia/CD. Although causality cannot be determined by our study, the results are in line with multiple randomised controlled trials. However, to understand the long-term effects of lipid levels and statin treatment on dementia/CD, studies of longer follow-up are still needed.</p>}},
  author       = {{af Geijerstam, Peder and Chalmers, John and Pikkemaat, Miriam and Peters, Ruth and Marre, Michel and Mancia, Giuseppe and Woodward, Mark and Harris, Katie}},
  issn         = {{1475-2840}},
  keywords     = {{Cholesterol; Cognitive decline; Dementia; Diabetes; Diabetes complications; Lipids; Lipoproteins; Type 2 diabetes}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{BioMed Central (BMC)}},
  series       = {{Cardiovascular Diabetology}},
  title        = {{Lipoprotein levels and statin treatment related to dementia and cognitive decline in individuals with type 2 diabetes : an observational analysis from the ADVANCE study}},
  url          = {{http://dx.doi.org/10.1186/s12933-025-02894-3}},
  doi          = {{10.1186/s12933-025-02894-3}},
  volume       = {{24}},
  year         = {{2025}},
}