View : 53 Download: 0

Occupational radiation exposure and cancer incidence in a cohort of diagnostic medical radiation workers in South Korea

Title
Occupational radiation exposure and cancer incidence in a cohort of diagnostic medical radiation workers in South Korea
Authors
Lee W.J.Ko S.Bang Y.J.Choe S.-A.Choi Y.Preston D.L.
Ewha Authors
최영철
SCOPUS Author ID
최영철scopus
Issue Date
2021
Journal Title
Occupational and Environmental Medicine
ISSN
1351-0711JCR Link
Citation
Occupational and Environmental Medicine vol. 78, no. 12, pp. 876 - 883
Keywords
epidemiologyionizingoccupational healthradiation
Publisher
BMJ Publishing Group
Indexed
SCIE; SCOPUS scopus
Document Type
Article
Abstract
Objectives We investigated the association between protracted low-dose ionising radiation and the risk of cancer in medical radiation workers, the largest group of workers with occupational radiation exposures. Methods Data of all South Korean diagnostic medical radiation workers enrolled at the National Dose Registry during 1996-2011 were merged with the death and cancer incidence data until 31 December 2017. SIRs, relative risks and excess relative risks (ERRs) for cancer were calculated to quantify the radiation dose-response relationship using Poisson regression models. Results A total of 3392 first primary cancer cases were identified among 93 920 diagnostic medical radiation workers. The mean cumulative badge dose in the cohort was 7.20 mSv. The ERRs for solid cancer with a 5-year lag and haematopoietic cancers with a 2-year lag for all workers were 0.15 per 100 mGy (95% CI -0.20 to 0.51) and 0.09 per 100 mGy (95% CI -2.02 to 2.20), respectively. The ERRs for cancers did not significantly vary by job title, different lag years or after excluding thyroid and lung cancers. Sensitivity analyses restricted to workers employed for at least 1 year, or who were employed in or after 1996, or who had exposure to a cumulative badge dose of 1 mSv or more showed similar results. Conclusions Occupational radiation doses were not significantly associated with cancer incidence among South Korean diagnostic medical radiation workers. However, cautious interpretation of ERRs is needed due to the limitations of short follow-up and low cumulative radiation doses. ©
DOI
10.1136/oemed-2021-107452
Appears in Collections:
의과대학 > 의학과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE