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Prevalence of dementia in selected Middle East and North Africa (MENA) countries: A systematic review and meta-analysis

Lookup NU author(s): Professor Matthew PrinaORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2026 The Author(s). Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association.Data on dementia epidemiology in the Middle East and North Africa (MENA) region is limited. This systematic review and meta-analysis examined dementia prevalence across MENA. Databases were searched up to October 2024. Analyses were stratified by country and sex. Pooled prevalence was estimated using a random-effects model with a 95% confidence interval (CI). Fifty-two studies on the selected countries met inclusion criteria, covering 87,219 individuals with dementia from a total population of 1,045,908. The pooled prevalence was 12.16% (95% CI: 9.61–14.96) for the region and the Israel had the highest prevalence (17.00%), followed by Iran (13.20%), Turkey (11.40%), Saudi Arabia (8.34%), and Egypt (6.86%). Dementia was more common in women than men (13.84% vs. 8.69%). Dementia is prevalent in MENA, with significant variation across countries. The region's aging population highlights the need for ongoing monitoring of dementia trends.


Publication metadata

Author(s): Sedighi M, Shahabi MH, Amanollahi A, Alam K, Shemehsavar S, Shirzadi Z, Sabatini S, Khatoonabadi AR, Prina M, Hosseini AA, Burley CV, Dunne J, Mahinrad S, Dajani I, Martins RN, Stephan BCM, Chaari A, Sohrabi HR

Publication type: Review

Publication status: Published

Journal: Alzheimer's and Dementia

Year: 2026

Volume: 22

Issue: 1

Online publication date: 28/01/2026

Acceptance date: 14/12/2025

ISSN (print): 1552-5260

ISSN (electronic): 1552-5279

Publisher: John Wiley and Sons Inc

URL: https://doi.org/10.1002/alz.71109

DOI: 10.1002/alz.71109

PubMed id: 41605847


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