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IADL status summary

Codes and Frequencies

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For persons aged 18 and older in the National Health Interview Survey-Disability Survey (NHIS-D) Phase I sample, DPIADL indicates if the person has one or more problems with instrumental activities of daily living (IADLs). IADLs include preparing meals for oneself; shopping for personal items; such as toilet items or medicine; managing money, such as keeping track of expenses and paying bills; using the telephone; doing heavy work around the house like scrubbing floors, washing windows, and heavy yard work; and doing light work around the house like doing dishes, straightening up, light cleaning, or taking out trash. This is a summary variable.


This variable is part of the Disability Supplement (NHIS-D) in 1994 and 1995 that collects information on disability. NHIS-D included two household interviews: in Phase I all members of sample families were screened for any indication of disability; in Phase II persons with any indication of disability were followed-up for additional information. Phase I includes sensory, communication, and mobility problems; health conditions; activities of daily living and independent activities of daily living; functional limitations; mental health; services and benefits; special health needs of children; early child development; education; relationship to respondent; and perceived disability. Phase II includes four Disability Followback Survey (DFS) questionnaires: one for children, one for adults, one for elderly persons (69 years of age and over) without any indication of disability (also called the Supplement on Aging or SOA; only in 1994), and one for persons with a history of polio.


There are no comparability issues.


  • 1994-1995: Persons age 18 and older in the NHIS-D Phase I sample.


  • 1994-1995