Restricted Data

What types of confidential variables can I access through the RDC?

• Direct identifiers (name, social security number, address) cannot be accessed through the RDC.
• Indirect Identifiers (geography) may be available through the RDC.

Restricted NCHS Data.

• Restricted Variables by NCHS Survey
• Geocodes by NCHS Survey

Researchers that only require data from the public use files do not need to submit an RDC proposal. Public Use Data

Other Restricted-Use Data

In addition to NCHS data, the RDC hosts data for several Operating Divisions within the Department of Health and Human Services (DHHS). Other Restricted