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United States National Immunization Survey-Child 2011-2012


General Info
Original or alternative title 
National Immunization Survey (NIS) 2011
United States Virgin Islands
Coverage type 
Time period covered 
01/2011 - 04/2012
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. In 2011, a dual-frame sampling design with independent samples drawn from landline and cell-phone sampling frames was used in order to stay up-to-date with the rise of cell-phone-only households. In total, the survey produced complete interviews for 25,305 children, and adequate provider data for 19,534 of those children.