USRT Health Study
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Cancer Incidence Studies - Thyroid Cancer

Thyroid cancer and employment as a radiologic technologist (2006 )
 We evaluated thyroid cancer risk associated with employment as a radiologic technologist in two groups of technologists: (a) those who were free of thyroid cancer at the first (baseline) survey in the mid-1980s and completed a second survey in the mid-1990s (148 thyroid cancers); and (b) those who were free of thyroid cancer for at least two years after certification and were followed to the baseline survey (121 thyroid cancers). A history of holding patients for x-rays at least 50 times was associated with a statistically significant 50% excess risk of thyroid cancers that occurred after the baseline survey; however, year began working as a radiologic technologist, number of years worked in total and by decade, years performing various procedures, and employment under age 20 were not related to thyroid cancer after the baseline survey. For thyroid cancers diagnosed before the baseline survey, risk increased with earlier year began working and was significantly elevated among those who worked 5 or more years before 1950.
 [Abstract]       [PubMed]
 
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