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Mean cognitive functioning according to age and cohort, Health and Retirement Study Life History Mail Survey Sample, United States, 1998–2014. Weighted estimates (person-period observations = 62,037; number of respondents = 9,565). Asset and Health Dynamics Among the Oldest Old/Children of the Depression (AHEAD/CODA) cohort born ≤1930; Health and Retirement Study (HRS)/War Babies cohort born 1931–1947; Baby Boomer cohort born 1948–1959.
