ArticleAging clinical and experimental research2022
Social network and the risk for developing mild cognitive impairment and dementia among older adults.
Article in Aging clinical and experimental research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Association of family and friend relationship satisfaction with incident dementia: A prospective cohort study of 104,093 participants.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- The relationship between social network size and brain structure in older adults living with HIV.Brain imaging and behavior · 2025Article
- The association between stereoscopic vision and cognitive function on community-dwelling older adults: a cross-sectional study.BMC geriatrics · 2025Article
- Association between disability and cognitive function in older Chinese people: a moderated mediation of social relationships and depressive symptoms.Frontiers in public health · 2024Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundThis study aimed to investigate the longitudinal associations between social network (SN) and the risk of lower cognitive function, mild cognitive impairment (MCI), and dementia among cognitively normal individuals 65 years and older.
methodsData from the Age, Gene/Environment Susceptibility (AGES) Reykjavik Study on 2816 participants (aged 65 to 96 years) were used to examine the associations using multiple logistic and linear regression models. SN included questions on frequency of contact with family and friends as well as information on marital status, resulting in a score ranging from 0 (poor social network) to 3 (good social network). Cognitive function outcomes included the speed of processing (SP), executive function (EF) and memory function (MF). MCI and dementia were diagnosed using a detailed assessment according to international guidelines.
resultsAt baseline 0.5, 7.0, 41.7 and 50.8% reported a score of 0, 1, 2 and 3, respectively. During a mean follow-up time of 5.2 years, 7.1% (n = 188) of cognitively intact participants developed MCI and 3.0% (n = 79) developed dementia. Longitudinal analyses demonstrated that participants who had low SN were significantly more likely to have declines in MF (β = - 0.533, P = 0.014) compared to high SN. Social networks were not independently associated with the decline of SP and EF during follow-up. According to fully adjusted models using logistic regression, SN was significantly associated with incidence risk of MCI (OR = 2.030, P = 0.014 and OR = 1.847 P = 0.001). These associations were largely independent of other lifestyle factors, depression and genetic disposition.
conclusionsCommunity-dwelling older adults who have poor social networks have a higher risk of declining memory function as well as a higher risk of mild cognitive impairment than older adults who have a higher social network. This study included numbers of relevant covariates in the study analysis, thereby significantly contributing to the literature on cognitive aging.
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