The prevalence of thyroid nodules and thyroid cancer was studied in the indigenous population residing on Ebeye Island, Kwajalein Atoll, in the Republic of the Marshall Islands.
This island, centrally located in the nation, is home to about 25% of the nation's population, many who have migrated there from other atolls.
The objective of the study was to obtain thyroid disease rate statistics on as much of the population as possible that was alive during the years of nuclear testing and to test the hypothesis that described a linearly decreasing prevalence of palpable nodules with increasing distance from the Bikini test site. 1,322 Marshallese born before 1965 were given a thyroid examination using neck palpation, fine needle aspiration biopsy, and high resolution ultrasound imaging.
Approximately 40% of the total population living on this island who are at risk from exposure to radioactive fallout during the years 1946-1958 were screened.
Of that group, 815 were alive at the time of the BRAVO test on 1 March 1954.
Two hundred sixty-six people with thyroid nodules were found (32.6%) : 132 were palpable nodules (16.2%), and 134 were nodules that could be diagnosed with ultrasound only (15.7%). Prevalence of palpable nodules was particularly high in men and women older than 60 y, in men who were 6 to to y of age at the time of the BRAVO test, and in women 1 to 10y of age at the time of the BRAVO test. (...)
Mots-clés Pascal : Thyroïde pathologie, Homme, Radiocontamination, Marshall, Micronésie, Océanie, Population, Armement nucléaire, Exploration ultrason, Biopsie, Diagnostic, Analyse risque, Retombée radioactive, Césium, Analyse statistique, Endocrinopathie, Essai nucleaire, Césium 137
Mots-clés Pascal anglais : Thyroid diseases, Human, Radioactive contamination, Marshall Islands, Micronesia, Oceania, Population, Nuclear weapon, Sonography, Biopsy, Diagnosis, Risk analysis, Radioactive fall out, Cesium, Statistical analysis, Endocrinopathy
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0408152
Code Inist : 002B21C01. Création : 19/12/1997.