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Sociodemographic- and APC-adjusted age, period, and cohort trends of ADL and IADL disabilities: (A) general age trends of ADL and IADL disabilities: ages 70–84, (B) general period trends of ADL and IADL disabilities: years 1982–2009, and (C) general cohort trends of ADL and IADL disabilities: cohorts 1905–1940. ADL = activities of daily living; APC = age, period, and cohort; IADL = instrumental activities of daily living.
