Key points
- Linking National Center for Health Statistics (NCHS) National Hospital Care Survey data with data from the Department of Housing and Urban Development enables researchers to conduct public health studies.
- Find a list of data dictionaries and resources for restricted-use data.
Overview
The National Center for Health Statistics Data Linkage Program links National Hospital Care Survey (NHCS) data with data from other agencies. NHCS restricted-use data is linked to administrative data from the (HUD).
Linked records include up to three years of administrative housing data from HUD's largest housing assistance programs, such as—
- Housing Choice Voucher (HCV) program
- Public housing (PH)
- Privately owned, subsidized multifamily housing (MF)
Linked data support research studies, including those examining the complex relationship between housing and health.
Restricted-use
Restricted-use linked NHCS–HUD data can be accessed only through the National Center for Health Statistics Research Data Center (RDC) network for approved research projects.
Data dictionaries
- HUD match file (08/08/2025)
- Any HUD program participation file (08/08/2025)
- HCV program participation file (08/08/2025)
- PH program participation file (08/08/2025)
- MF program participation file (08/08/2025)
Linkage methods and analytical support
2019 NHCS-2018–2020 HUD and 2020 NHCS-2019–2021 HUD
- Matching Methodology and Analytic Considerations (08/25/2025)
2014 NHCS-2013–2015 HUD and 2016 NHCS-2015–2017 HUD
- Matching Methodology and Analytic Considerations (08/31/2021)
Content Source:
National Center for Health Statistics