Description

For sample children under 18 years old who have an immunization record and who have at least two Hepatitis A vaccines on their record, IMRHEPAY2 reports the year when the person received his or her second Hepatitis A vaccine.

Users should combine IMRHEPAY2 with IMRHEPAMO2, which reports the month of the person's second Hepatitis A vaccine, in order to get the complete date when the person received his or her second Hepatitis A vaccine.

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

Availability

• 1997-2003

Weights

• 1997-2003 : SUPP1WT