Codes and Frequencies
For sample children under 6 years old who reported any information regarding their Hepatitis B vaccine(s) and who received at least four Hepatitis B vaccines, IMAHIBAGE4 reports the person's age when he or she received the fourth Hepatitis B vaccine.
Users are strongly encouraged to visit the Universe tab for more information on changes in the universe across surveyed years.
- 1991: Sample persons under age 6 who reported any information on HIB shots and received four or more HIB shots.
- 1991 : SAMPWEIGHT