02036607 EDB-87-164563 Title: Operations order serial number 1-52 Test Aircraft Unit, Bergstrom AFB, Corporate Source: p 65 Publication Date: 1 Aug 1952 Report Language: English Journal Announcement: ERA8710 Availability: NTIS, PC A0Q4/MF AOl. Subfile: ERA (USA) AD-A-995497/5/XAB; TAU-132.4.2 Report Number(s): Document Type: TX (Energy Research Abstracts). GRA Country of Origin: United States Country of Publication: Abstract: None (NTIS NTS) United States Major Descriptors: *IVY PROJECT -- PERSONNEL MONITORING; *NUCLEAR EXPLOSIONS -- IVY PROJECT; *NUCLEAR EXPLOSIONS -- RADIOACTIVE CLOUDS; *RADIOACTIVE CLOUDS -- SAMPLING Descriptors: AIRCRAFT Broader Terms: CLOUDS; EXPLOSIONS; RADIATION MONITORING Subject Categofies: 450202* Weaponry -- (-1989) MONITORING; NUCLEAR EXPLOSIONS; -- Explosions & Explosives -- Nuclear -- 10/5/458 (Item 158 from file: 103) 02031562 EDB-87-159517 Title: Thyroid neoplasia in Marshall Islanders exposed to nuclear fallout Author(s): Hamilton, Affiliation: Univ. Source: JAMA, J. T.E.; van Belle, of Washington, Am. Med. Assoc. Publication Date: 7 Aug 1987 Document Type: Journal Article Language: English Journal Announcement: INS8710 Subfile: INS United States ULoGerfo, (United States) Pp 629-635 (US Atomindex input). Country of Origin: G.; Seattle NLM J.P. v 258:5. Coden: JAMAA (National Library of Medicine) Abstract: We studied the risk of thyroid neoplasia in Marshall Islanders exposed to radioiodines in nuclear fallout from the 1954 BRAVO thermonuclear test. We screened 7266 Marshall Islanders for thyroid nodules; the islanders were from 14 atolls, including several southern atolls, which were the source of the best available unexposed comparison group. Using a retrospective cohort design, we determined the prevalence of thyroid nodularity in a subgroup of 2273 persons who were alive in 1954 and who therefore were potentially exposed to fallout from the BRAVO test. For those 12 atolls previously thought to be unexposed to fallout, the prevalence of thyroid nodules ranged from 0.9% to 10.6%. Using the distance of each atoll from the test site as a proxy for the radiation dose to the thyroid gland, a weighted linear regression showed an inverse linear relationship between distance and the age-adjusted prevalence of thyroid nodules. Distance was the strongest single predictor in logistic regression analysis. A new absolute risk estimate was calculated to be 1100 excess cases/Gy/y/1 X 10(6) persons (11.0 excess cases/rad/y/1 million persons), 33% higher than previous estimates. We conclude that an excess of thyroid nodules was not limited only to the two northern atolls but extended throughout the northern atolls; this suggests a linear dose-response relationship. Major Descriptors: *NEOPLASMS -- RADIOINDUCTION; *THYROID -- RADIATION DOSES *THYROID -- NEOPLASMS; Descriptors: DELAYED RADIATION EFFECTS; DOSE-RESPONSE RELATIONSHIPS; FALLOUT; ‘GEOGRAPHICAL VARIATIONS; MARSHALL ISLANDS; THYROIDECTOMY Broader Terms: BIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; BODY; DISEASES; DOSES; ENDOCRINE GLANDS; GLANDS; ISLANDS; MEDICINE; oatCoheed OCEANIA; ORGANS; RADIATION EFFECTS; SURGERY; VARIATIONS Subject Categofies: 560161* -- Radionuclide Effects, Kinetics, & Toxicology -- Man INIS Subject Categories: C2110* -- Radioisotope effects, kinetics & 50031b2