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Influence of periodontal disease on risk of dementia: a systematic literature review and a meta-analysis

Nadim, Rizwan, Tang, Jie, Dilmohamed, Amena, Yuan, Siyang, Wu, Changhao, Bakre, Aishat T., Partridge, Martin, Ni, Jindong, Copeland, John R., Anstey, Kaarin J. and Chen, Ruoling (2020) Influence of periodontal disease on risk of dementia: a systematic literature review and a meta-analysis European Journal of Epidemiology.

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Abstract

Periodontal disease (PD) is common and increases cardiovascular diseases. However, it is unclear whether PD is associated with increased risk of dementia. We carried out a systematic review and meta-analysis to investigate the influence of PD on dementia. We projected the number of dementia cases to be saved by reducing PD prevalence in the world. We searched cohort and case–control studies reporting the association of PD with all dementia (or any specific type of dementia) through PubMed, MEDLINE, PsycINFO, SocINDEX, CINHAL, and CNKI until 7th November 2018. Five cohorts and seven case–control studies were identified for review. We pooled eligible data to calculate relative risk (RR) of dementia in relation to PD and computed the number of dementia cases saved through reducing PD prevalence. Of 12 studies, six were undertaken in Asia, four in Europe and two in America. Eleven studies showed a positive association between PD and the risk of dementia, of which 10 were significant, and one reported a non-significant inverse association. Overall their quality was good. Pooled RR of dementia in relation to PD from all high quality studies was 1.38 (95%CI 1.01–1.90); in the five cohorts was 1.18 (1.06–1.31) and in the two case–control studies 2.25 (1.48–3.42). A 50% reduction in the current prevalence of 20% of PD in the population could save 850,000 (630,000–1,420,000) patients with dementia in the world. PD could increase the risk of incident dementia. Preventing and treating PD could contribute to controlling the global epidemic of dementia.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
NameEmailORCID
Nadim, Rizwan
Tang, Jie
Dilmohamed, Amena
Yuan, Siyang
Wu, ChanghaoC.Wu@surrey.ac.uk
Bakre, Aishat T.
Partridge, Martin
Ni, Jindong
Copeland, John R.
Anstey, Kaarin J.
Chen, Ruoling
Date : 12 June 2020
DOI : 10.1007/s10654-020-00648-x
Copyright Disclaimer : © 2020 Springer. This is a post-peer-review, pre-copyedit version of an article published in European Journal of Epidemiology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10654-020-00648-x
Uncontrolled Keywords : Oral health; Periodontitis; Periodontal disease; Dementia; Alzheimer’s disease; Meta-analysis
Depositing User : Clive Harris
Date Deposited : 17 Jun 2020 00:08
Last Modified : 17 Jun 2020 00:08
URI: http://epubs.surrey.ac.uk/id/eprint/858003

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