At a glance
- Learn what restricted data are available from the National Home and Hospice Care Survey and National Home Health Aid Survey.
- Researchers interested in using these data must obtain approval through the NCHS Research Data Center.
Overview
Restricted data fields are information that could compromise the confidentiality of survey respondents or institutions or are sensitive by nature. If researchers interested in using data from a National Center for Health Statistics (NCHS) survey find that something asked on the survey questionnaire does not have a corresponding variable in the public use data set, that variable may be restricted.
The various files available for the National Home and Hospice Care Survey (NHHCS) and the National Home Health Aide Survey (NHHAS) can be merged using restricted ID variables. This allows researchers to examine the relationships between facility characteristics, patient characteristics, and workers' characteristics.
Using restricted variables requires the submission of a research proposal to the NCHS Research Data Center for access.
Data
The links below take you to information about restricted variables in the 2007 National Home and Hospice Care Survey (NHHCS) and the National Home Health Aide Survey (NHHAS). These variables are either not in public use files or are presented in different form in the public use files.
- 2007 National Home and Hospice Care Survey – Agency File
- 2007 National Home and Hospice Care Survey – Patient File
- 2007 National Home Health Aide Survey