Codes and Frequencies
Description
INTROYEAR reports the year that the case was first contacted for an interview (panel year).
There are several other variables that report date information on when the case was introduced. Also see INTRODATE for the date the case was introduced (panel day) and INTROMONTH for the month that the case was introduced (panel month).
Universe
- ATUS respondents and nonrespondents.
Availability
- 2005-2023