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Arthritis and cognitive impairment in older adults

Baker, Nancy A. and Barbour, Kamil E. and Helmick, Charles G. and Zack, Matthew and Al Snih, Soham (2017) Arthritis and cognitive impairment in older adults. Rheumatology International, 37 (6). pp. 955-961. ISSN 0172-8172

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Adults aged 65 or older with arthritis may be at increased risk for cognitive impairment [cognitive impairment but not dementia (CIND) or dementia]. Studies have found associations between arthritis and cognition impairments; however, none have examined whether persons with arthritis develop cognitive impairments at higher rates than those without arthritis. Using data from the Health and Retirement Study, we estimated the prevalence of cognitive impairments in older adults with and without arthritis, and examined associations between arthritis status and cognitive impairments. We calculated incidence density ratios (IDRs) using generalized estimating equations to estimate associations between arthritis and cognitive impairments adjusting for age, sex, race/ethnicity, marital status, education, income, depression, obesity, smoking, the number of chronic conditions, physical activity, and birth cohort. The prevalence of CIND and dementia did not significantly differ between those with and without arthritis (CIND: 20.8%, 95% CI 19.7-21.9 vs. 18.3%, 95% CI 16.8-19.8; dementia: 5.2% 95% CI 4.6-5.8 vs. 5.1% 95% CI 4.3-5.9). After covariate control, older adults with arthritis did not differ significantly from those without arthritis for either cognitive outcome (CIND IDR: 1.6, 95% CI = 0.9-2.9; dementia IDR: 1.1, 95% CI = 0.4-3.3) and developed cognitive impairments at a similar rate to those without arthritis. Older adults with arthritis were not significantly more at risk to develop cognitive impairments and developed cognitive impairments at a similar rate as older adults without arthritis over 6 years.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Baker, Nancy
Barbour, Kamil E.
Helmick, Charles G.
Zack, Matthew
Al Snih, Soham
Date: 23 March 2017
Date Type: Publication
Journal or Publication Title: Rheumatology International
Volume: 37
Number: 6
Publisher: Springer Veriag
Page Range: pp. 955-961
DOI or Unique Handle: 10.1007/s00296-017-3698-1
Schools and Programs: Graduate School of Public Health > Occupational Medicine
Refereed: No
ISSN: 0172-8172
Official URL:
Article Type: Research Article
Date Deposited: 19 Jun 2020 13:37
Last Modified: 19 Jun 2020 13:37


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