RT Journal Article
SR Electronic
T1 Risk of thyroid nodules in subjects occupationally exposed to radiation: a cross sectional study.
JF Occupational and Environmental Medicine
JO Occup Environ Med
FD BMJ Publishing Group Ltd
SP 500
OP 504
DO 10.1136/oem.52.8.500
VO 52
IS 8
A1 A Antonelli
A1 G Silvano
A1 F Bianchi
A1 C Gambuzza
A1 L Tana
A1 G Salvioni
A1 V Baldi
A1 L Gasperini
A1 L Baschieri
YR 1995
UL http://oem.bmj.com/content/52/8/500.abstract
AB 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.