On March 31, 2025, NIH requested that the following language be added to this website:

This repository is under review for potential modification in compliance with Administration directives.

Respondent Date of Birth (1992-2022)

Includes month, day and year of birth for each respondent.

Product Details

N
46,766
Product Type
Other
Entry Cohort Info
All
Latest Release December 2025
Documentation and Links
Notes: 

This file is based on the 2022 Tracker File (Final 2022 v1.0).