Dementia Burden and Modifiable Risk Factors in Type 2 Diabetes: Population Based, Prospective Cohort Study
Authors' conclusion
T2D-attributable dementia is a time-evolving, escalating, and highly modifiable global health challenge. Integrating multidomain interventions into standard diabetes care, particularly for individuals with younger-onset T2D, and adapting strategies to local contexts may substantially reduce the dementia burden.
Study context
- Population
- UK Biobank cohort and Global Burden of Disease Study 2021, 204 countries/territories, 1990 to 2050
- Exposure
- T2D vs no T2D
- Outcome
- Global dementia burden attributable to T2D
- Follow-up
- 1990 to 2050
Methodological detailsmultinational, UK Biobank and Global Burden of Disease Study 2021 data
- Multinational
- UK Biobank and Global Burden of Disease Study 2021 data
Main finding
As reported in the abstract
T2D-attributable dementia burden · 2021
Dementia cases attributable to T2D globally
9.57 million
95% CI 5.59–10.39
Share of global dementia burden (9.64%-18.33%)
16.85%
Share expected by 2050
exceed 25%
Observational data: associations, not effects.
Further findings
Dementia risk and onset in T2D
- T2D associated with higher risk and earlier onset of dementia, especially with T2D diagnosed at ages 30-54 years
Preventable dementia in T2D by optimizing all modifiable risk factors
- Dementia cases in T2D potentially preventable
- 47.1%
- T2D Cognitive Health Essential 10 associated with no significant excess dementia risk in T2D
Original publication
Dementia Burden and Modifiable Risk Factors in Type 2 Diabetes: Population Based, Prospective Cohort Study. Diabetes Obes Metab. Published 26 March 2026. doi:10.
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