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United States National Immunization Survey-Child 2003-2004


General Info
Original or alternative title 
National Immunization Survey (NIS) 2003
Coverage type 
Time period covered 
01/2003 - 05/2004
Series or system 
United States National Immunization Survey-Child (NIS-Child)
Data type
  • Cross-sectional
  • Household
  • Interview
  • Nationally representative
  • Subnationally representative

The National Immunization Survey is conducted by the National Center for Immunizations and Respiratory Diseases and the National Center for Health Statistics at the Centers for Disease Control and Prevention. It began in April 1994 in order to collect data on childhood immunization coverage. It uses a list-assisted random-digit-dialing telephone survey methodology of household respondents, and a mailed survey to children’s health care providers. The target population for the survey is children aged 19-35 months at the time of the interview, and the mail-in portion of the survey collects data on all current recommended vaccines and doses. Major changes to the 2003 survey included a revision to the immunization history questionaire, and to the sampling weights. In total, the survey produced complete interviews for 30,930 children, and adequate provider data for 21,310 of those children.