Journal article

Global prevalence of dementia: a Delphi consensus study

CP Ferri, M Prince, C Brayne, H Brodaty, L Fratiglioni, M Ganguli, K Hall, K Hasegawa, H Hendrie, YQ Huang, A Jorm, C Mathers, PR Menezes, E Rimmer, M Scazufca

Lancet | LANCET LTD | Published : 2005

Abstract

BACKGROUND: 100 years after the first description, Alzheimer's disease is one of the most disabling and burdensome health conditions worldwide. We used the Delphi consensus method to determine dementia prevalence for each world region. METHODS: 12 international experts were provided with a systematic review of published studies on dementia and were asked to provide prevalence estimates for every WHO world region, for men and women combined, in 5-year age bands from 60 to 84 years, and for those aged 85 years and older. UN population estimates and projections were used to estimate numbers of people with dementia in 2001, 2020, and 2040. We estimated incidence rates from prevalence, remission,..

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