The Hanford Thyroid Disease Study
HTDS is a study of thyroid disease among people who were exposed to radioactive iodine (iodine-131) from the Hanford Nuclear Site in Washington State. The exposures occurred from 1944 through 1957.
The question of the study was, “Did exposure to iodine-131 from Hanford result in increased incidence of thyroid disease?”
CDC and the Fred Hutchinson Cancer Research Center released the Final Report in June 2002.
HTDS at a Glance
HTDS Guide
Detailed information about how the study was conducted and the findings.
HTDS Technical Report
Download a copy of the complete technical report
Download Now [PDF – 25M]
(need Acrobat Reader to view)
Public Presentation
Video interviews with HTDS research team now available.