Cohort Changes in Cognitive Function Among Mexican Older Adults from 2001 to 2021
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View abstract on PubMed
Summary
This summary is machine-generated.Older adults in Mexico experienced slower cognitive decline in more recent cohorts. Multimorbidity
Area Of Science
- Gerontology
- Cognitive Neuroscience
- Public Health
Background
- Multimorbidity, defined as having two or more chronic conditions, is linked to accelerated cognitive decline in older adults.
- Longitudinal data on cognitive decline and multimorbidity in low- and middle-income countries, such as Mexico, are scarce.
Purpose Of The Study
- To investigate cohort differences in the annual rate of cognitive decline among older Mexican adults.
- To determine if the association between multimorbidity and cognitive decline varies between two distinct birth cohorts.
Main Methods
- Analysis of two 10-year birth cohorts (Cohort 1: 1941-1951; Cohort 2: 1952-1962) with baseline ages 50-60.
- Three waves of data collection over 10-year periods for each cohort (Cohort 1: 2001, 2003, 2012; Cohort 2: 2012, 2015, 2021).
- Growth curve models were employed to assess annual changes in global cognitive function scores (GCFS) and cohort differences.
Main Results
- The earlier cohort (Cohort 1, baseline 2001) exhibited a significantly faster average annual rate of cognitive decline (GCFS) compared to the later cohort (Cohort 2, baseline 2012).
- The association between multimorbidity and the rate of cognitive decline did not significantly differ between the two cohorts when controlling for potential confounders.
Conclusions
- The observed slower cognitive decline in the more recent cohort suggests potential benefits from improved educational attainment and enhanced cognitive reserve.
- Improvements in healthcare access over recent decades may have mitigated the adverse effects of multimorbidity on cognitive function, explaining the lack of cohort differences in this association.
- Findings highlight evolving patterns of cognitive aging and the impact of multimorbidity in the Mexican population.
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