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Journal Article

Citation

Weiss J, Rabinowitz AR, Deshpande SK, Hasegawa RB, Small DS. Am. J. Epidemiol. 2021; ePub(ePub): ePub.

Copyright

(Copyright © 2021, Oxford University Press)

DOI

10.1093/aje/kwab177

PMID

unavailable

Abstract

We examined the association between early-life participation in collision sports and later life cognitive health over a 28-year period in a population-based sample drawn from the longitudinal Swedish Adoption/Twin Study of Aging (1987-2014). Cognitive measures included the Mini-Mental State Examination and performance across multiple cognitive domains (e.g., global cognition, verbal ability, spatial ability, memory, processing speed). Among a sample of 660 adults (mean age at baseline 62.8 years [range: 50-88]; 58.2% female) who contributed 10,944 person-years of follow-up, there were 450 cases of cognitive impairment (crude rate: 41.1/1,000 person-years). Early-life participation in collision sports was not significantly associated with cognitive impairment at baseline nor its onset over a 28-year period in a time-to-event analysis which accounted for the semi-competing risk of death. Furthermore, growth curve models revealed no association between early-life participation in collision sports and the level of or change in trajectories of cognition across multiple domains overall nor in gender-stratified models. We discuss the long-term implications of adolescent participation in collision sports on cognitive health.


Language: en

Keywords

cognitive aging; cognitive impairment; collision sports; twins

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