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Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing
OBJECTIVES: To examine the association between cognitive stimulating activities (CSA) in later life (internet/email use, employment, volunteering, evening classes, social club membership and newspaper reading) and risk of cognitive impairment or dementia using marginal structural models to account f...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495111/ https://www.ncbi.nlm.nih.gov/pubmed/32984495 http://dx.doi.org/10.1016/j.ssmph.2020.100656 |
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author | Williams, Benjamin David Pendleton, Neil Chandola, Tarani |
author_facet | Williams, Benjamin David Pendleton, Neil Chandola, Tarani |
author_sort | Williams, Benjamin David |
collection | PubMed |
description | OBJECTIVES: To examine the association between cognitive stimulating activities (CSA) in later life (internet/email use, employment, volunteering, evening classes, social club membership and newspaper reading) and risk of cognitive impairment or dementia using marginal structural models to account for time-varying confounding affected by prior exposure. METHODS: Data were used from the English Longitudinal Study of Ageing waves 1 (2002) to 7 (2014), a nationally representative sample of adults in England aged ≥50. Self-reported participation in CSAs were measured as binary exposures from waves 2 (2004) to 6 (2012), with final sample sizes between n = 3937 and n = 2530 for different CSAs. Baseline exposure and covariates were used to create inverse probability of treatment and censoring weights (IPTCW). IPTCW repeated measures Poisson and linear regression were used to estimate each CSAs effect on risk of probable cognitive impairment or dementia at wave 7 (defined as a score of ≤11/27 on a modified telephone interview for cognitive status (TICS-27)). Results were compared to standard regression adjustment. RESULTS: Internet use at any wave (Risk ratios between 0.62 and 0.69) and volunteering in waves 3 to 6 (RRs between 0.516 and 0.633) were associated with reduced risk of cognitive impairment in IPTCW models. Standard estimates were similar for both internet use and volunteering. Newspaper reading (RR 95% Confidence interval 0.74–0.99) and social club membership (RR 95% CI 0.54–0.86) at wave 6 were significantly associated with risk of cognitive impairment in standard models, but not in the IPTCW models (RR 95% CI 0.82–1.11 and 0.60–1.08 respectively). Employment and evening classes were not associated with cognitive impairment in either model. CONCLUSIONS: We found that volunteering and internet use were associated with reduced risk of cognitive impairment. Associations between newspaper reading or social club membership and cognitive impairment may be due to time-varying confounding affected by prior exposure. |
format | Online Article Text |
id | pubmed-7495111 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-74951112020-09-25 Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing Williams, Benjamin David Pendleton, Neil Chandola, Tarani SSM Popul Health Article OBJECTIVES: To examine the association between cognitive stimulating activities (CSA) in later life (internet/email use, employment, volunteering, evening classes, social club membership and newspaper reading) and risk of cognitive impairment or dementia using marginal structural models to account for time-varying confounding affected by prior exposure. METHODS: Data were used from the English Longitudinal Study of Ageing waves 1 (2002) to 7 (2014), a nationally representative sample of adults in England aged ≥50. Self-reported participation in CSAs were measured as binary exposures from waves 2 (2004) to 6 (2012), with final sample sizes between n = 3937 and n = 2530 for different CSAs. Baseline exposure and covariates were used to create inverse probability of treatment and censoring weights (IPTCW). IPTCW repeated measures Poisson and linear regression were used to estimate each CSAs effect on risk of probable cognitive impairment or dementia at wave 7 (defined as a score of ≤11/27 on a modified telephone interview for cognitive status (TICS-27)). Results were compared to standard regression adjustment. RESULTS: Internet use at any wave (Risk ratios between 0.62 and 0.69) and volunteering in waves 3 to 6 (RRs between 0.516 and 0.633) were associated with reduced risk of cognitive impairment in IPTCW models. Standard estimates were similar for both internet use and volunteering. Newspaper reading (RR 95% Confidence interval 0.74–0.99) and social club membership (RR 95% CI 0.54–0.86) at wave 6 were significantly associated with risk of cognitive impairment in standard models, but not in the IPTCW models (RR 95% CI 0.82–1.11 and 0.60–1.08 respectively). Employment and evening classes were not associated with cognitive impairment in either model. CONCLUSIONS: We found that volunteering and internet use were associated with reduced risk of cognitive impairment. Associations between newspaper reading or social club membership and cognitive impairment may be due to time-varying confounding affected by prior exposure. Elsevier 2020-08-26 /pmc/articles/PMC7495111/ /pubmed/32984495 http://dx.doi.org/10.1016/j.ssmph.2020.100656 Text en © 2020 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Williams, Benjamin David Pendleton, Neil Chandola, Tarani Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title | Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title_full | Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title_fullStr | Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title_full_unstemmed | Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title_short | Cognitively stimulating activities and risk of probable dementia or cognitive impairment in the English Longitudinal Study of Ageing |
title_sort | cognitively stimulating activities and risk of probable dementia or cognitive impairment in the english longitudinal study of ageing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495111/ https://www.ncbi.nlm.nih.gov/pubmed/32984495 http://dx.doi.org/10.1016/j.ssmph.2020.100656 |
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