OBJECTIVES: To examine, by ultrasonography the prevalence of thyroid nodules in a cross sectional study of male medical workers occupationally exposed to chi radiation at the Pisa hospital, in comparison with controls matched for age and sex. METHODS: 50 male medical workers exposed to radiation were randomly matched for age (+/- 2 years) with 100 male workers not occupationally exposed to ionising radiation who lived in a slightly iodine deficient area of Tuscany (Lunigiana) (control group 1), and with 100 male workers not exposed to radiation who lived in the same area (Pisa) (control group 2). RESULTS: Of the occupationally exposed subjects, thyroid nodules were detected in 19/50 (38.0%). Among controls, thyroid nodules were detected in 19/100 subjects of control group 1 and in 13/100 of control group 2. Comparison of exposed and control groups, stratified into 30-39, 40-49, and 50-59 year old age subgroups, showed a higher significant relative risk for thyroid nodules in the exposed subjects. CONCLUSION: The results suggest that occupational exposure to radiation may be a risk factor for thyroid nodules.
OBJECTIVES: To examine, by ultrasonography the prevalence of thyroid nodules in a cross sectional study of male medical workers occupationally exposed to chi radiation at the Pisa hospital, in comparison with controls matched for age and sex. METHODS: 50 male medical workers exposed to radiation were randomly matched for age (+/- 2 years) with 100 male workers not occupationally exposed to ionising radiation who lived in a slightly iodine deficient area of Tuscany (Lunigiana) (control group 1), and with 100 male workers not exposed to radiation who lived in the same area (Pisa) (control group 2). RESULTS: Of the occupationally exposed subjects, thyroid nodules were detected in 19/50 (38.0%). Among controls, thyroid nodules were detected in 19/100 subjects of control group 1 and in 13/100 of control group 2. Comparison of exposed and control groups, stratified into 30-39, 40-49, and 50-59 year old age subgroups, showed a higher significant relative risk for thyroid nodules in the exposed subjects. CONCLUSION: The results suggest that occupational exposure to radiation may be a risk factor for thyroid nodules.
Authors: G M Kendall; C R Muirhead; B H MacGibbon; J A O'Hagan; A J Conquest; A A Goodill; B K Butland; T P Fell; D A Jackson; M A Webb Journal: BMJ Date: 1992-01-25
Authors: L Donati; A Antonelli; F Bertoni; D Moscogiuri; M Andreani; S Venturi; T Filippi; L Gasperini; S Neri; L Baschieri Journal: Thyroid Date: 1992 Impact factor: 6.568
Authors: Francesco S Violante; Paolo Romano; Roberta Bonfiglioli; Vittorio Lodi; Maurilio Missere; Stefano Mattioli; Giovanni B Raffi Journal: Int Arch Occup Environ Health Date: 2003-07-08 Impact factor: 3.015
Authors: Paolo Trerotoli; Anna Ciampolillo; Giuseppe Marinelli; Riccardo Giorgino; Gabriella Serio Journal: BMC Public Health Date: 2005-07-07 Impact factor: 3.295