Abstract

Objectives: To examine associations between sustained ownership of a pet and cognitive outcomes among a national sample of U.S. adults. Methods: Weighted linear mixed models were estimated using the Health and Retirement Study (2010-2016, n = 1369) to compare repeated measures of cognitive function between respondents who endorsed owning a pet in a sustained manner (>5years), versus those who owned a pet ≤5years, and non-pet owners. Results: Respondents aged 65+ who owned a pet >5years demonstrated higher composite cognitive scores, compared to non-pet owners (β = .76, p = .03). Sustained pet ownership was associated with higher immediate (β = .3, p = .02) and delayed (β = .4, p = .007) word recall scores. There were no significant differences in cognitive scores between pet owners and non-owners aged < 65. Discussion: Sustained ownership of a pet could mitigate cognitive disparities in older adults. Further studies are needed to examine potential causal pathways, including physical activity and stress buffering, versus selection effects.

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