Thyroid cancer incidence among liquidators of the Chernobyl accident. Absence of dependence of radiation risks on external radiation dose. 2002

V K Ivanov, and A F Tsyb, and A V Petrov, and M A Maksioutov, and T P Shilyaeva, and E V Kochergina
4 Korolyov street, Obninsk, Kaluga region, 249020 Russia. nrer@obninsk.com

The increase of thyroid cancer incidence rate among children living in the Chernobyl contaminated territories of Belarus, Russia and Ukraine has widely been accepted. Our current work deals with thyroid cancer incidence in the cohort of liquidators (99024 persons) living in 6 regions of Russia: North-West, Volgo-Vyatsky, Central-Chernozemny, Povolzhsky, North-Caucasus and Urals. In the period 1986-1998, a total of 58 thyroid cancer cases were detected in this cohort. We found a statistically significant increase of the thyroid cancer incidence rate in liquidators as compared to the baseline (male population of Russia) level (SIR=4.33, 95% CI: 3.29; 5.60). It was demonstrated that there is no dependence of incidence rates due to external radiation exposure (ERR/Gy=-2.23, 95% CI: -4.67; 0.22).

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009381 Neoplasms, Radiation-Induced Tumors, cancer or other neoplasms produced by exposure to ionizing or non-ionizing radiation. Radiation-Induced Cancer,Cancer, Radiation-Induced,Radiation-Induced Neoplasms,Cancer, Radiation Induced,Cancers, Radiation-Induced,Neoplasm, Radiation-Induced,Neoplasms, Radiation Induced,Radiation Induced Cancer,Radiation Induced Neoplasms,Radiation-Induced Cancers,Radiation-Induced Neoplasm
D011210 Power Plants Units that convert some other form of energy into electrical energy. Electric Power Plants,Hydroelectric Power Plants,Thermoelectric Power Plants,Electric Power Plant,Hydroelectric Power Plant,Plant, Electric Power,Plant, Hydroelectric Power,Plant, Power,Plant, Thermoelectric Power,Plants, Electric Power,Plants, Hydroelectric Power,Plants, Power,Plants, Thermoelectric Power,Power Plant,Power Plant, Electric,Power Plant, Hydroelectric,Power Plant, Thermoelectric,Power Plants, Electric,Power Plants, Hydroelectric,Power Plants, Thermoelectric,Thermoelectric Power Plant
D011829 Radiation Dosage The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv). Sievert Units,Dosage, Radiation,Gray Units,Gy Radiation,Sv Radiation Dose Equivalent,Dosages, Radiation,Radiation Dosages,Units, Gray,Units, Sievert
D002291 Carcinoma, Papillary A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. (Stedman, 25th ed) Carcinomas, Papillary,Papillary Carcinoma,Papillary Carcinomas
D003666 Decontamination The removal of contaminating material, such as radioactive materials, biological materials, or CHEMICAL WARFARE AGENTS, from a person or object.
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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