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IMRFLUY1
Record date of first influenza shot: Year
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Codes and Frequencies



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Description

For sample children under 18 years old who have an immunization record and who have at least one flu shot on their record, IMRFLUY1 reports the year of the person's first flu shot.

Users should combine IMRFLUY1 with IMRFLUMO1, which reports the month of the person's first flu shot, in order to get the complete date when the person received his or her first flu shot.

Users are strongly encouraged to visit the Universe tab for more information on changes in the universe across surveyed years.

Comparability

Changes in the universe limit the comparability of this variable. As always, users are advised to use the appropriate weight for their analyses.

Universe

  • 1997: Sample children under 18, and all children 19-35 months old in quarters 1 and 2 and 12-35 months old in quarters 3 and 4, with available shot records and one or more influenza shots on record.
  • 1998-2002: Sample children under 18, and all children 12-35 months old, with available shot records and one or more influenza shots on record.
  • 2003: Sample children under 18, with available shot records and one or more influenza shots on record.

Availability

  • 1997-2003

Weights