Type

Journal Article

Authors

Frank Kee
Andrew Steptoe
Brian A. Lawlor
Joanna E. McHugh

Subjects

Psychology

Topics
longitudinal study cognitive psychology risk factors older adults sex education logistic regression welfare of older people social isolation

Interactive impacts of loneliness and social isolation on incident dementia in the English Longitudinal Study of Ageing (2016)

Abstract Background: Social isolation and loneliness have previously been characterised as risk factors for cognitive decline and dementia. We wanted to investigate potential synergistic effects of these factors on incident dementia over an eight year period in the English Longitudinal Study of Ageing. Methods: Social isolation and loneliness were evaluated in Wave 3 of the study, among 4714 community-dwelling participants aged over 50. Covariates (age, sex, education level, deprivation index, depressive symptomatology, cognitive status, and self-reported chronic illness) were also evaluated at this time. A logistic regression model was used to evaluate the interactive impact of social isolation and loneliness upon incident dementia assessed at wave 6. Individuals introduced to the panel as refreshment, or those who developed dementia in the interim, were excluded from the analysis. Results: Between waves 5 and 6, 18 individuals in our sample had developed incident dementia. Loneliness was related to increased likelihood of developing dementia (OR = 1.8, CI95 = 1.02, 3.18), but social isolation was not (OR = 0.75, CI95 = 0.4, 1.39). The interaction term was also significant (OR = 2.19, CI95 = 1.42, 3.48) such that having high levels of both loneliness and social isolation was related to increased likelihood of dementia. Conclusions: Social isolation and loneliness seem to have super-additive effects on incident dementia over 8 years. Social isolation may only be a risk factor of dementia for older adults when it is accompanied by loneliness.
Collections Ireland -> National College Ireland -> Status = Published
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Cognitive psychology
Ireland -> National College Ireland -> Subject = H Social Sciences: HV Social pathology. Social and public welfare: Welfare of older people
Ireland -> National College Ireland -> Type = Article

Full list of authors on original publication

Frank Kee, Andrew Steptoe, Brian A. Lawlor, Joanna E. McHugh

Experts in our system

1
Frank Kee
National College Ireland
Total Publications: 25
 
2
Andrew Steptoe
National College Ireland
Total Publications: 7
 
3
Brian A. Lawlor
National College Ireland
Total Publications: 125
 
4
Joanna E. McHugh
National College Ireland
Total Publications: 36