Codes and Frequencies
For sample persons who are deaf in one or both ears, have trouble hearing with one or both ears, or use a hearing aid, HRCOTHMACH indicates whether the cause of the hearing trouble or deafness was exposure to "other noise from machinery, aircraft, power tools, loud music, appliances, Walkman personal stereos, hair dryers, etc."
This variable is part of the Hearing Supplement, which provides unique information on hearing conditions. For related variables and more information about this supplement, please use the IPUMS NHIS search function and drop-down menus.
- 1991: Persons who are now deaf in one or both years or now have other trouble hearing in one or both ears or now use a hearing aid.
- 1991 : PERWEIGHT