Multimorbidity in dementia: current perspectives and future challenges

Journal article : Review

Multimorbidity—the co-occurrence of two or more chronic health conditions—affects > 86% of people with dementia. It is associated with cognitive and functional decline, reduced health-related quality of life, increased health-care use, and higher mortality. The relationship between multimorbidity and dementia is potentially bidirectional; conditions such as hypertension and diabetes increase the risk of developing dementia, and cognitive impairment can complicate their management. This complexity presents challenges in health care and research, affecting treatment decisions and often leading to the exclusion of these individuals from clinical trials. Understanding multimorbidity through long-term prospective studies is crucial to clarify its relationship with dementia. Investigating specific disease combinations, environmental and genetic factors, and their impacts on cognitive health will guide the development of effective prediction models and inclusive intervention strategies for diverse global populations across the life course.

Authors: Stirland, LE; Choate, R; Zanwar, PP; Zhang, P; Watermeyer, TJ

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Wiley
• Journal: Alzheimer's & Dementia: The Journal of the Alzheimer's Association
• Volume: 21
• Issue: 8
• Article number: e70546
• Publication date: 2025-08-04
• Acceptance date: 2025-07-07
• DOI: 10.1002/alz.70546
• EISSN: 1552-5279
• ISSN: 1552-5260
• Language: English
• Keywords: multiple long-term conditions; all-cause dementia; comorbidity; multimorbidity
• Subtype: Review