ArticlePsychiatry investigation2022
The Impact of the COVID-19 Pandemic and Social Distancing on Cognition of Alzheimer's Disease Patients.
Article in Psychiatry investigation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 7 citations in OpenAlex.
- The Importance of the Social Environment for People Living With Dementia and Their Carers: Qualitative Evidence From DETERMIND and PriDem on the Impact of COVID-19 Service Changes and Restrictions in England and Wales.Dementia (London, England) · 2026Article
- mFrontiers in cell and developmental biology · 2024Review
- A review of the roles of pathogens in Alzheimer's disease.Frontiers in neuroscience · 2024Review
- Neuroinflammation in Alzheimer's Disease: A Potential Role of Nose-Picking in Pathogen Entry via the Olfactory System?Biomolecules · 2023Review
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe risk of rapid cognitive decline in Alzheimer's disease (AD) during the coronavirus disease 2019 (COVID-19) pandemic has been recognized. The purpose of this study was to investigate the cognitive decline in such patients during the COVID-19 pandemic by evaluating changes in their cognitive measure parameters before and after the pandemic.
methodsThis was a retrospective cohort study conducted in AD patients during their first visit and one-year regular follow-up for testing cognitive function at the Geriatric Psychiatry Clinic of Seoul St. Mary's Hospital. Changes in the Mini-Mental State Examination (MMSE), Clinical Dementia Rating (CDR), and Sum of Box for CDR (CDR-SB) scores were investigated. A time series analysis was performed to determine whether there was a significant difference in the MMSE, CDR, and CDR-SB scores of AD patients in pre- and post-COVID-19 periods.
resultsOverall, 130 AD patients aged 60 to 93 years were assessed. Their baseline mean MMSE score was 22.30 which had decreased to 21.08 at the one-year follow-up. Before November 2019, the average CDR differences for one year was 0.06, but after November 2019, it increased to 0.36 (p<0.001). Before November 2019, the average of the CDR-SB change value for one year was 1.69, but after November 2019, it increased to 3.00 (p<0.001). The difference in MMSE values for one year was not statistically significant. The time series analysis revealed a significant increase in the CDR and CDR-SB scores by approximately 0.47 (p=0.005) and 2.39 (p=0.002), before and after November 1, 2019, respectively.
conclusionThis study revealed that the COVID-19 pandemic and social distancing worsen cognitive function in AD patients rapidly. Exposure to the COVID-19 pandemic and social distancing for at least seven months worsen cognitive decline significantly. Therefore, in order to minimize the adverse effects of the cognitive decline in these patients, the period of social distancing should be minimized.
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