Community engagement and dementia risk: time-to-event analyses from a national cohort study

被引:48
作者
Fancourt, Daisy [1 ]
Steptoe, Andrew [1 ]
Cadar, Dorina [1 ]
机构
[1] UCL, Dept Behav Sci & Hlth, Res Dept Epidemiol & Publ Hlth, London WC1E 6BT, England
基金
英国惠康基金;
关键词
dementia; ageing; social activities; psychosocial factors; cognition; COGNITIVE FUNCTION; OLDER-ADULTS; DECLINE; LONELINESS; DEATH; AGE;
D O I
10.1136/jech-2019-213029
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Background There is increasing interest in the potential health benefits of referring older adults to engage in community leisure activities ('social prescribing') to help promote healthy cognitive ageing. However, it remains unclear whether beneficial effects of community engagement are independent of the well-known protective effects of broader structural, functional and subjective social factors. Methods We analysed data from 9550 adults aged 50+ fromthe English Longitudinal Study of Ageing, with baseline from 2004 to 2005. We assessed associations between different types of community engagement and dementia incidence over a 12-year period. Specifically, we used Cox proportional hazards models, competing risk regressions models, and modified Fine and Gray subdistribution hazards models while controlling for all identified demographic, health-related, and social covariates. Results Community cultural engagement (eg, visiting museums, galleries, the theatre) was associated with a lower hazard of developing dementia in older age independent of demographic, health-related and a broad range of social factors, using all three statistical approaches (fully adjusted Cox models: HR 0.58, 95%CI 0.41 to 0.80). Community group engagement (eg, attending clubs or societies) was only associated with dementia prior to adjustment for social factors. Results were robust to sensitivity analyses considering reverse causality, over-adjustment and baseline cognitive function. Conclusion It is not just social factors that are associated with reduced risk of dementia onset, but community engagement may also be protective, particularly when relating to cultural activities. These findings are of relevance when considering the current interest in social prescribing to support healthy ageing.
引用
收藏
页码:71 / 77
页数:7
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