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Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data
OBJECTIVES: Determine the risk of incident dementia in adults with cerebral palsy (CP) compared with age, sex and general practice (GP) matched controls. DESIGN: Retrospective cohort study. SETTING: UK GPs linked into the Clinical Practice Research Datalink (CPRD). PARTICIPANTS: CPRD data were used...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7839844/ https://www.ncbi.nlm.nih.gov/pubmed/33495255 http://dx.doi.org/10.1136/bmjopen-2020-042652 |
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author | Smith, Kimberley J Peterson, Mark D Victor, Christina Ryan, Jennifer M |
author_facet | Smith, Kimberley J Peterson, Mark D Victor, Christina Ryan, Jennifer M |
author_sort | Smith, Kimberley J |
collection | PubMed |
description | OBJECTIVES: Determine the risk of incident dementia in adults with cerebral palsy (CP) compared with age, sex and general practice (GP) matched controls. DESIGN: Retrospective cohort study. SETTING: UK GPs linked into the Clinical Practice Research Datalink (CPRD). PARTICIPANTS: CPRD data were used to identify adults aged 18 or older with a diagnosis of CP. Each adult with CP was matched to three controls who were matched for age, sex and GP. In total, 1703 adults with CP and 5109 matched controls were included in the analysis. The mean baseline age of participants was 33.30 years (SD: 15.48 years) and 46.8% of the sample were female. PRIMARY OUTCOME: New diagnosis of dementia during the follow-up period (earliest date of 1987 to latest date of 2015). RESULTS: During the follow-up, 72 people were identified with a new diagnosis of dementia. The overall proportion of people with and without CP who developed dementia was similar (CP: n=19, 1.1%; matched controls n=54, 10.0%). The unadjusted HR suggested that people with CP had an increased hazard of being diagnosed with dementia when compared with matched controls (HR 2.69, 95% CI 1.44 to 5.00). This association was attenuated when CP comorbidities (sensory impairment, intellectual disability and epilepsy) were accounted for (HR 1.92, 95% CI 0.92 to 4.02). CONCLUSIONS: There was no difference in the proportion of people with CP and matched controls who were diagnosed with dementia during the follow-up. Furthermore, while there was evidence for an increased hazard of dementia among people with CP, the fact that this association was attenuated after controlling for comorbidities indicates that this association may be explained by comorbidities rather than being a direct result of CP. Findings should be interpreted with caution due to the low number of incident cases of dementia. |
format | Online Article Text |
id | pubmed-7839844 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BMJ Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-78398442021-02-04 Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data Smith, Kimberley J Peterson, Mark D Victor, Christina Ryan, Jennifer M BMJ Open Neurology OBJECTIVES: Determine the risk of incident dementia in adults with cerebral palsy (CP) compared with age, sex and general practice (GP) matched controls. DESIGN: Retrospective cohort study. SETTING: UK GPs linked into the Clinical Practice Research Datalink (CPRD). PARTICIPANTS: CPRD data were used to identify adults aged 18 or older with a diagnosis of CP. Each adult with CP was matched to three controls who were matched for age, sex and GP. In total, 1703 adults with CP and 5109 matched controls were included in the analysis. The mean baseline age of participants was 33.30 years (SD: 15.48 years) and 46.8% of the sample were female. PRIMARY OUTCOME: New diagnosis of dementia during the follow-up period (earliest date of 1987 to latest date of 2015). RESULTS: During the follow-up, 72 people were identified with a new diagnosis of dementia. The overall proportion of people with and without CP who developed dementia was similar (CP: n=19, 1.1%; matched controls n=54, 10.0%). The unadjusted HR suggested that people with CP had an increased hazard of being diagnosed with dementia when compared with matched controls (HR 2.69, 95% CI 1.44 to 5.00). This association was attenuated when CP comorbidities (sensory impairment, intellectual disability and epilepsy) were accounted for (HR 1.92, 95% CI 0.92 to 4.02). CONCLUSIONS: There was no difference in the proportion of people with CP and matched controls who were diagnosed with dementia during the follow-up. Furthermore, while there was evidence for an increased hazard of dementia among people with CP, the fact that this association was attenuated after controlling for comorbidities indicates that this association may be explained by comorbidities rather than being a direct result of CP. Findings should be interpreted with caution due to the low number of incident cases of dementia. BMJ Publishing Group 2021-01-25 /pmc/articles/PMC7839844/ /pubmed/33495255 http://dx.doi.org/10.1136/bmjopen-2020-042652 Text en © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/ http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/. |
spellingShingle | Neurology Smith, Kimberley J Peterson, Mark D Victor, Christina Ryan, Jennifer M Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title | Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title_full | Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title_fullStr | Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title_full_unstemmed | Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title_short | Risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
title_sort | risk of dementia in adults with cerebral palsy: a matched cohort study using general practice data |
topic | Neurology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7839844/ https://www.ncbi.nlm.nih.gov/pubmed/33495255 http://dx.doi.org/10.1136/bmjopen-2020-042652 |
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