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Designing prevention programmes to reduce incidence of dementia: prospective cohort study of modifiable risk factors

BMJ, 2010-08, Vol.341 (7768), p.336-336 [Peer Reviewed Journal]

Ritchie et al 2010 ;2010 BMJ Publishing Group Ltd ;Copyright: 2010 © Ritchie et al 2010 ;Distributed under a Creative Commons Attribution 4.0 International License ;Ritchie et al 2010 2010 Ritchie et al ;ISSN: 0959-8138 ;ISSN: 0959-8146 ;EISSN: 1468-5833 ;EISSN: 1756-1833 ;DOI: 10.1136/bmj.c3885 ;PMID: 20688841 ;CODEN: BMJOAE

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Title:
Designing prevention programmes to reduce incidence of dementia: prospective cohort study of modifiable risk factors
Author: Ritchie, K ; Carrière, I ; Ritchie, C W ; Berr, C ; Artero, S ; Ancelin, M-L
Subjects: Age ; Aged ; Aged, 80 and over ; Alzheimers disease ; Apolipoprotein E ; Cognitive ability ; Cognitive impairment ; Cultural differences ; Dementia ; Dementia - epidemiology ; Dementia - prevention & control ; Dementia disorders ; Depressive disorders ; Diabetes ; Diabetes mellitus ; Disease prevention ; Epidemiologic Studies ; Epidemiology ; Female ; France ; France - epidemiology ; Fruits ; Genetic variation ; Geriatry and gerontology ; Health risk assessment ; Human health and pathology ; Humans ; Hypertension ; Incidence ; Intelligence ; Intervention ; Life Sciences ; Life Style ; Lifestyles ; Male ; Memory Disorders (Neurology) ; Memory Disorders (Psychiatry) ; Mental depression ; Molecular Genetics ; Neurologic Examination ; Older people ; Population ; Population studies ; Predisposing factors ; Prospective Studies ; Psychiatrics and mental health ; Public health ; Risk Factors ; Santé publique et épidémiologie ; Sociodemographics ; Socioeconomic Factors ; Vegetables
Is Part Of: BMJ, 2010-08, Vol.341 (7768), p.336-336
Description: Objective To estimate the percentage reduction in incidence of dementia that would be obtained if specific risk factors were eliminated.Design Prospective seven year cohort study.Setting General population, Montpellier, France.Participants 1433 people aged over 65 with a mean baseline age of 72.5 (SD 5.1) years.Main outcome measures Diagnosis of mild cognitive impairment or dementia established by a standardised neurological examination.Results Cox models were constructed to derive hazard ratios and determine confounding and interaction effects for potentially modifiable risk factors for dementia. Mean percentage population attributable fractions were calculated with 95% confidence intervals derived from bootstrapping for seven year incidence of mild cognitive impairment or dementia. The final model retained crystallised intelligence (population attributable fraction 18.11%, 95% confidence interval 10.91% to 25.42%), depression (10.31%, 3.66% to 17.17%), fruit and vegetable consumption (6.46%, 0.15% to 13.06%), diabetes (4.88%, 1.87% to 7.98%), and apolipoprotein E ε4 allele (7.11%, 2.44% to 11.98%).Conclusions Increasing crystallised intelligence and fruit and vegetable consumption and eliminating depression and diabetes are likely to have the biggest impact on reducing the incidence of dementia, outweighing even the effect of removing the principal known genetic risk factor. Although causal relations cannot be concluded with certainty, the study suggests priorities that may inform public health programmes.
Publisher: England: British Medical Journal Publishing Group
Language: English
Identifier: ISSN: 0959-8138
ISSN: 0959-8146
EISSN: 1468-5833
EISSN: 1756-1833
DOI: 10.1136/bmj.c3885
PMID: 20688841
CODEN: BMJOAE
Source: BMJ Open Access Journals
Hyper Article en Ligne (HAL) (Open Access)
MEDLINE
Alma/SFX Local Collection
ProQuest Central

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Designing prevention programmes to reduce incidence of dementia: prospective cohort study of modifiable risk factors

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