4.7 Article

Reduced Prevalence and Incidence of Cognitive Impairment Among Centenarian Offspring

Publisher

OXFORD UNIV PRESS INC
DOI: 10.1093/gerona/gly141

Keywords

Longevity; Centenarians; Cognition; Cognitive impairment

Funding

  1. National Institute on Aging [U19 AG023122]
  2. National Institute of General Medical Sciences (NIGMS) Interdisciplinary Training Grant for Biostatisticians [T32 GM74905]
  3. William M. Wood Foundation
  4. NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [T32GM074905] Funding Source: NIH RePORTER
  5. NATIONAL INSTITUTE ON AGING [U19AG023122] Funding Source: NIH RePORTER

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Centenarian offspring have better health and lower mortality in comparison to referent cohorts, however it is unknown whether they have preserved cognition at older ages. This prospective study of 491 centenarian offspring and 270 referent participants without familial longevity (mean baseline age 75.5 years) from the New England Centenarian Study analyzed longitudinal cognitive assessments performed using the Telephone Interview for Cognitive Status. Logistic regression was used for cognitive impairment at baseline and Cox proportional hazards regression for risk of incident cognitive impairment. After adjustment for age, sex, education, stroke, and diabetes, offspring were 46% less likely to have baseline cognitive impairment (adjusted odds ratio 0.54, 95% CI 0.350.82) and were 27% less likely to become cognitively impaired over a median follow-up of 7.8 years (adjusted hazard ratio 0.73, 95% CI 0.530.99). Female gender was also independently associated with lower odds of baseline cognitive impairment and lower risk of incident cognitive impairment. Familial longevity may confer exposure to genetic and environmental factors that predispose centenarian offspring to preservation of cognitive function at older ages. Centenarian offspring cohorts may provide an opportunity to study cognitive resilience associated with familial longevity.

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