Incidence of dementia and mild cognitive impairment in two Indigenous Bolivian cohorts

Margaret Gatz, Wendy Mack, Daniel Eid Rodriguez, Raul Quispe Gutierrez, Juana Bani Cuata, Helena Chui, Ellen E. Walters, Daniel Cummings, Paul L. Hooper, Henrik Zetterberg, Caleb Finch, Benjamin C. Trumble, Jonathan Stieglitz, Michael Gurven, Randall C. Thompson, Gregory Thomas and Hillard Kaplan
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Jonathan Stieglitz: TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, IAST - Institute for Advanced Study in Toulouse

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Abstract: We studied dementia incidence and risk factors in Indigenous Tsimane and Moseten Amerindian populations in Amazonian Bolivia with largely subsistence lifestyles. METHODS A median of 4.7 years after baseline dementia assessment, 730 participants (52% male; mean age 67.3 years) were re-visited at two follow-up phases to determine new cases among non-demented at baseline. Clinical evaluation was adapted to culture, language, and illiteracy. RESULTS There were 22 incident dementia cases (7.40/1000 person years; 95% confidence interval = 4.87?11.24). Prevalence rates remained

Date: 2026-09
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Published in Alzheimer's & Dementia : the Journal of the Alzheimer's Association, 2026, Vol. 22 (n°9), ⟨10.1002/alz.71750⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-05767738

DOI: 10.1002/alz.71750

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