Codes and Frequencies
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Description
For persons who have at least nine assistive devices, AD9FREQ reports how often the person uses his or her ninth device.
Please use the IPUMS NHIS drop down menu and search functions for related variables.
Universe
- 1990: Persons with at least nine assistive devices.
Availability
- 1990
Weights
- 1990 : SUPP2WT
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