Codes and Frequencies
For sample children age 7 to 17 with available shot records and at least four tetanus-diphtheria booster shot on record, IMRTDBY4 reports the year of the fourth tetanus-diphtheria booster shot.
Please use the IPUMS NHIS drop down menu and search functions for related variables.
- 1997-2003: Sample children age 7 to 17 with available shot records and four tetanus-diptheria booster shots on record.
- 1997-2003 : SUPP1WT