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.
Detailed information about how the study was conducted and the findings.
Download a copy of the complete technical report
Download Now [PDF – 25M]
(need Acrobat ReaderExternal to view)
Video interviews with HTDS research team now available.