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Supplementary Material for: A Systematic Review and Meta-analysis on the prevalence of mild cognitive impairment and dementia in Mexico

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posted on 2024-06-07, 11:21 authored by Magallón-Zertuche V., Salazar-Gonzalez E., González-Castro D.G., Garrido-Dzib A.G., Chávez-Loría G., Avila-Nava A., Gutiérrez-Solis A.L.
Introduction: Age remains one of the major risk factors for the onset of mild cognitive impairment (MCI) and dementia. Studies on the prevalence of these conditions in Mexico used different methods, tools, and population with different health status. All these heterogeneous results may be a problem in identifying the true prevalence of MCI and dementia in Mexico. To our knowledge, there is not a systematic review available that presents essential figures on the prevalence of these conditions in Mexico. Therefore, we intend to access the maximum number of reports published on the topic and determine the prevalence of MCI and dementia in Mexican older adults. Methods: A systematic review using PubMed, Cochrane, Research Gate, Lilacs, and Scielo databases. Meta-analysis of the prevalence of MCI and dementia was analyzed using a random-effects model and presented in a forest plot among cross-sectional, epidemiological and pooled studies. Results: Sixteen articles were included. The overall prevalence of MCI of 18% (95% CI 0.10–0.27) was estimated from pooled information from 12 selected studies, in women 21% (95% CI 0.08–0.38), and in men 18% (95% CI 0.06–0.33). The overall prevalence of dementia of 10% (95% CI 0.06–0.14) was estimated from pooled information from 9 selected studies, in women 14% (95% CI 0.05–0.25), and in men 10% (95% CI 0.04–0.17). Conclusion: Mexican older individuals have a similar prevalence of dementia and MCI as reported by international data; nevertheless, the prevalence is higher than some Latin American Countries. Mexico has particular issues that must be resolved, such as, a lack of research in the southern regions of the country and the high incidence of comorbidities.


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