Comorbid health conditions and their impact on social isolation, loneliness, quality of life, and well-being in people with dementia: longitudinal findings from the IDEAL programme

• Published in: BMC geriatrics Vol. 24; no. 1; pp. 23 - 11
• Main Authors: Sabatini, Serena, Martyr, Anthony, Hunt, Anna, Gamble, Laura D, Matthews, Fiona E, Thom, Jeanette M, Jones, Roy W, Allan, Louise, Knapp, Martin, Victor, Christina, Pentecost, Claire, Rusted, Jennifer M, Morris, Robin G, Clare, Linda
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 05-01-2024; BioMed Central; BMC
• Subjects: Age; Alzheimer Disease; Alzheimer's disease; Analysis; Caregivers; Cerebrovascular disease; Cognition; Cognitive ability; Comorbidity; Cross-Sectional Studies; Dementia; Dementia disorders; Development and progression; Diabetes; Health services; Humans; Illnesses; Loneliness; Marital status; Memory; Multimorbidity; Neurodegenerative diseases; Older people; Physical health; Psychological aspects; Quality of Life; Social interaction; Social interactions; Social Isolation; Social network; Social networks; Vascular dementia; United Kingdom; United Kingdom > UK; Wales; Social network; Illnesses; Alzheimer’s disease; Comorbidity; Physical health
• ISSN: 1471-2318; 1471-2318
• DOI: 10.1186/s12877-023-04601-x

Most people with dementia have multiple health conditions. This study explores (1) number and type of health condition(s) in people with dementia overall and in relation to age, sex, dementia type, and cognition; (2) change in number of health conditions over two years; and (3) whether over time the number of health conditions at baseline is related to social isolation, loneliness, quality of life, and/or well-being.
Longitudinal data from the IDEAL (Improving the experience of Dementia and Enhancing Active Life) cohort were used. Participants comprised people with dementia (n = 1490) living in the community (at baseline) in Great Britain. Health conditions using the Charlson Comorbidity Index, cognition, social isolation, loneliness, quality of life, and well-being were assessed over two years. Mixed effects modelling was used.
On average participants had 1.8 health conditions at baseline, excluding dementia; increasing to 2.5 conditions over two years. Those with vascular dementia or mixed (Alzheimer's and vascular) dementia had more health conditions than those with Alzheimer's disease. People aged ≥ 80 had more health conditions than those aged < 65 years. At baseline having more health conditions was associated with increased loneliness, poorer quality of life, and poorer well-being, but was either minimally or not associated with cognition, sex, and social isolation. Number of health conditions had either minimal or no influence on these variables over time.
People with dementia in IDEAL generally had multiple health conditions and those with more health conditions were lonelier, had poorer quality of life, and poorer well-being.