Description
For sample children under 18 years old who have an immunization record and who have at least one chickenpox shot on their record, IMRCPOXY1 reports the year of the person's first chickenpox shot.
Users should combine IMRCPOXY1 with IMRCPOXMO1, which reports the month of the person's first chickenpox shot, in order to get the complete date of the person's first chickenpox shot.
Users are strongly encouraged to visit the Universe tab for more information on changes in the universe across surveyed years.
