TABLE 2-1 Alternative Estimates of Functional and Activity Limitation by Age: United States

Survey

Under 18

18-44

45-64

65 and Over

Numbers (in thousands)

 

 

 

 

Activity limitation

 

 

 

 

National Health Interview Survey (1985)

3,221

8,391

10,405

10,709

ICD-Louis Harris (1985)

8,800a

10,200

8,000

Functional limitation

 

 

 

 

Survey of Income and Program Participation (1984)

2,326

11,139b

10,541c

15,466

Percent of population group

 

 

 

 

Activity limitation

 

 

 

 

National Health Interview Survey (1985)

5.1

8.4

23.4

39.6

ICD-Louis Harris (1985)

8.2a

22.7

28.0

Functional limitation

 

 

 

 

Survey of Income and Program Participation (1984)

3.7

10.1b

31.9c

58.7

Notes: Definition of disability differs for each survey. National Health Interview Survey: Unable to carry out major activity; limited in amount or kind of major activity; or limited, but not in major activity. International Center for the DisabledLouis Harris Survey : Prevented from full participation in work, school, or other activities; having a physical disability, seeing, hearing, or speaking impairment, an emotional or mental disability, or a learning disorder; or considering oneself disabled or considered disabled by others. Survey of Income and Program Participation: For adults, needs assistance with ADLs or IADLS; inability or difficulty in at least one function. For children, having a physical condition that limits the ability to walk, run, or play, or a mental or emotional condition that limits the ability to learn or do school work.

a Ages 16-44.

b Ages 18-49.

c Ages 50-64.

SOURCES: National Center for Health Statistics, 1986; Louis Harris and Associates, Inc., 1986; calculated from Rice and LaPlante, 1988a; U.S. Department of Health and Human Services, 1989d.

The relationships among a number of different measures of disability are illustrated in Figure 2-3, from the 1984 SIPP. Each box represents a segment of the population (in thousands) meeting a particular combination of conditions. For example, in the bottom right corner 956,000 people are age 65 to 72 and have a work limitation but report no limitations in functioning.



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