Observational studySocial science & medicine (1982)2026
Number of living siblings, social engagement, and cognitive decline among older Mexican adults.
Observational study in Social science & medicine (1982), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Hearing Status, Social Engagement, and Longitudinal Changes in Cognition: Results From the Mexican Health and Aging Study.Journal of aging research · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Research on the association between adult siblings and later life cognition is limited. Sibship size may impact cognitive development in early childhood and shape opportunities for social support and social interaction throughout life, potentially influencing cognitive health later in life. Siblings can also be a source of engagement to the community and expand social environments that enhance cognition. Using lifecourse and cognitive enrichment frameworks, we examine the association between the number of living siblings in later life and cognitive health among older Mexican adults and whether social engagement in community activities moderates the association. Data come from the 2012, 2015, 2018, and 2021 waves of the Mexican Health and Aging Study (n = 14,872 adults age 50+). Latent growth curve models evaluate how one's number of living siblings relates with levels of latent general cognitive ability and nine-year cognitive decline, and whether these associations differ by social engagement. Results showed that each additional sibling was associated with higher cognitive ability but was unrelated to cognitive decline. Social engagement in community activities was associated with higher levels of cognitive ability but a faster pace of cognitive decline. Social engagement did not moderate the association between the number of living siblings and cognitive functioning or decline. The findings broaden our understanding of the salience of siblings and social engagement in community activities for older Mexicans' health. Future research is needed on alternative social support for older adults amidst Mexico's changing demographics that challenge the reliance on traditional sources of family support in later life.
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Registered trials
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