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 four flu shots on their record, IMRFLUY4 reports the year of the person's fourth flu shot.
Users should combine IMRFLUY4 with IMRFLUMO4, which reports the month of the person's fourth flu shot, in order to get the complete date when the person received his or her fourth flu shot.
Users are strongly encouraged to visit the Universe tab for more information on changes in the universe across surveyed years.
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 four or more influenza shots on record.
- 1998-2002: Sample children under 18, and all children 12-35 months old, with available shot records and four or more influenza shots on record.
- 2003: Sample children under 18, with available shot records and four or more influenza shots on record.
Availability
- 1997-2003
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Weights
- 1997-2003 : SUPP1WT