{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T19:23:54Z","timestamp":1783106634525,"version":"3.54.6"},"reference-count":31,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2022,12,13]],"date-time":"2022-12-13T00:00:00Z","timestamp":1670889600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","award":["K241G062785"],"award-info":[{"award-number":["K241G062785"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","award":["K76AG064427"],"award-info":[{"award-number":["K76AG064427"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","award":["P01AG066605"],"award-info":[{"award-number":["P01AG066605"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["agsjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J American Geriatrics Society"],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Assessing activity limitations is central to aging research. However, assessments of activity limitations vary, and this may have implications for the populations identified. We aim to compare measures of activities of daily living (ADLs) and their resulting prevalence and mortality across three nationally\u2010representative cohort studies: the National Health and Aging Trends Study (NHATS), the Health and Retirement Survey (HRS), and the Medicare Current Beneficiary Survey (MCBS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We compared the phrasing and context of questions around help and difficulty with six self\u2010care activities: eating, bathing, toileting, dressing, walking inside, and transferring. We then compared the prevalence and 1\u2010year mortality for difficulty and help with eating and dressing.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>NHATS, HRS, and MCBS varied widely in phrasing and framing of questions around activity limitations, impacting the proportion of the population found to experience difficulty or receive help. For example, in NHATS 12.4% [95% confidence interval (CI) 11.5%\u201313.4%] of the cohort received help with dressing, while in HRS this figure was 6.4% [95% CI 5.7%\u20137.2%] and MCBS 5.3% [95% CI 4.7%\u20135.8%]. When combined with variation in sampling frame and survey approach of each survey, such differences resulted in large variation in estimates of the older population of older adults with ADL disability.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In order to take late\u2010life activity limitations seriously, we must clearly define the measures we use. Further, researchers and clinicians seeking to understand the experience of older adults with activity limitations should be careful to interpret findings in light of the framing of the question asked.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jgs.18158","type":"journal-article","created":{"date-parts":[[2022,12,13]],"date-time":"2022-12-13T08:41:10Z","timestamp":1670920870000},"page":"858-868","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The devil's in the details: Variation in estimates of late\u2010life activity limitations across national cohort studies"],"prefix":"10.1111","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1371-8524","authenticated-orcid":false,"given":"Claire K.","family":"Ankuda","sequence":"first","affiliation":[{"name":"Brookdale Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai  New York New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenneth","family":"Covinsky","sequence":"additional","affiliation":[{"name":"Division of Geriatrics University of California San Francisco  San Francisco California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicki A.","family":"Freedman","sequence":"additional","affiliation":[{"name":"Michigan Center on the Demography of Aging University of Michigan  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenneth","family":"Langa","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine University of Michigan  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melissa D.","family":"Aldridge","sequence":"additional","affiliation":[{"name":"Brookdale Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai  New York New York USA"},{"name":"Geriatric Research Education and Clinical Center James J. Peters VA Medical Center  Bronx New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cynthia","family":"Yee","sequence":"additional","affiliation":[{"name":"Brookdale Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai  New York New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6345-9834","authenticated-orcid":false,"given":"Amy S.","family":"Kelley","sequence":"additional","affiliation":[{"name":"Brookdale Department of Geriatrics and Palliative Medicine Icahn School of Medicine at Mount Sinai  New York New York USA"},{"name":"Geriatric Research Education and Clinical Center James J. 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