Codes and Frequencies
Description
For sample persons under age 6, IMSVAC reports the source of vaccine information.
Please use the IPUMS NHIS drop down menu and search functions for related variables.
Universe
- 1991-1993: Sample persons under age 6.
- 1994-1996: Sample persons under age 6 and all persons 19-35 months.
Availability
- 1991-1996
Weights
- 1991 : SAMPWEIGHT
- 1992-1996 : SUPP1WT