Cognitively Intact and Happy Life Expectancy in the United States

Anthony R Bardo, Scott M Lynch and Shevaun Neupert

The Journals of Gerontology: Series B, 2021, vol. 76, issue 2, 242-251

Abstract: ObjectivesWe examined the number of years to be lived with and without cognitive impairment and with high self-assessed quality of life (i.e., happiness) among a nationally representative sample of Americans aged 65 years and older. Two key questions are addressed: Can people have a high quality of life despite being cognitively impaired? Which is longer: happy life expectancy or cognitively intact life expectancy?MethodData from nine waves of the Health and Retirement Study (1998–2014) were used to estimate transition probabilities into and out of cognitively intact/impaired-un/happy states, as well as to death. Recently extended Bayesian multistate life table methods were used to estimate age-specific cognitively intact and happy life expectancy net of sex, race/ethnicity, education, and birth cohort.ResultsHappiness and cognitive impairment were shown to coexist in both the gross cross-tabulated data and in the life tables. Happy life expectancy is approximately 25% longer than cognitively intact life expectancy at age 65 years, and by age 85, happy life expectancy is roughly double cognitively intact life expectancy, on average.DiscussionLack of cognitive impairment is not a necessary condition for happiness. In other words, people can have a high quality of life despite being cognitively impaired.

Keywords: Cognitive impairment; Health and Retirement Study; Mortality; Quality of life; Subjective well-being (search for similar items in EconPapers)
Date: 2021
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The Journals of Gerontology: Series B is currently edited by Psychological Sciences - S. Duke Han, PhD and Social Sciences - Jessica A Kelley, PhD, FGSA

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