National Immunization Survey
The National Immunization Surveys (NIS) are a group of telephone surveys sponsored and conducted by CDC’s National Center for Immunization and Respiratory Diseases (NCIRD). From 2011 through 2017, the National Immunization Surveys used a dual frame survey design, including landline and cell phone numbers for household interviews with parents or guardians. Since 2018, the NIS has been administered as a single frame cellular phone survey. If the parent or guardian provides consent and contact information, a mailed questionnaire is sent to children’s vaccination providers.
Data and Documentation
Public use data files and documentation: NIS Data, Tables, and Documentation | CDC
NIS- Teen (NIS-Teen)
NIS- Flu (NIS -Flu)
NIS- Child COVID Module (NIS- CCM)
NIS- Adult COVID Module (NIS-ACM)
Codebooks are not available for restricted-use datasets. Review the questionnaires to determine the variables you would like to access in your proposal.
Location of Access:
Your request for access to restricted-use data is captured within the RDC proposal. In the proposal, please thoroughly explain your research need for access to restricted-use variables, your analytic plan, how you intend to report your results, and the exact output you need for your near final product (e.g., paper, journal article or presentation). All sections of the proposal must be filled-out and clearly stated. Submit your proposal as one document to firstname.lastname@example.org.
Confidentiality and Disclosure
After the proposal is approved, all members of the research team are required to complete the Confidentiality Training. Please submit your Confidentiality Training certificate and signed, notarized non-disclosure affidavit to your RDC Analyst along with the Data Use Agreement. For more information, see: Confidentiality and Disclosure
Review Output for Disclosure Risk
All output submitted for a disclosure review must be the near final product and it must match the output described in your approved proposal. We will not review frequency distributions or other large volumes of output. For more information, see: Output Policies and Procedures (hyperlink to https://www.cdc.gov/rdc/b1datatype/rdc-Output.htm)
Approved Projects – Next Steps
The RDC Approved Projects – Next Steps outlines the process with the following exception(s):
- Data set creation – the variables listed in the data dictionary included in your proposal format will be extracted from the data files to create the analytic data set you will access to conduct your research.
Always discuss next steps with your RDC Analyst.