Using personal monitoring data to derive organ doses for medical radiation workers in the Million Person Study – considerations regarding NCRP Commentary No. 30

2020 ◽  
Author(s):  
R Craig Yoder ◽  
Stephen Balter ◽  
John D Boice Jr. ◽  
Helen Grogan ◽  
Michael Mumma ◽  
...  
Keyword(s):  
Monitoring Data ◽  
Personal Monitoring ◽  
Organ Doses ◽  
Medical Radiation ◽  
Radiation Workers

scholarly journals ESTIMATION OF ORGAN DOSES AMONG DIAGNOSTIC MEDICAL RADIATION WORKERS IN SOUTH KOREA

2017 ◽  
Vol 179 (2) ◽  
pp. 142-150 ◽  
Author(s):  
Yeongchull Choi ◽  
Eun Shil Cha ◽  
Ye Jin Bang ◽  
Seulki Ko ◽  
Mina Ha ◽  
...  
Keyword(s):  
South Korea ◽  
Organ Doses ◽  
Medical Radiation ◽  
Radiation Workers

Occupational hazards among medical radiation workers

2018 ◽  
Vol 25 (1) ◽  
pp. 28
Author(s):  
PrinceAmeh Ogenyi ◽  
Andrew England ◽  
Yusuf Aliyu ◽  
Joseph Dlama ◽  
Ahmed Hamza ◽  
...  
Keyword(s):  
Occupational Hazards ◽  
Medical Radiation ◽  
Radiation Workers

scholarly journals O6B.6 Occupational radiation exposure and the risk of cancer and cardiovascular diseases among medical radiation workers

2019 ◽  
Vol 76 (Suppl 1) ◽  
pp. A54.3-A55
Author(s):  
Won Jin Lee ◽  
Eun Shil Cha ◽  
Seulki Ko
Keyword(s):  
Cardiovascular Diseases ◽  
Radiation Exposure ◽  
Risk Groups ◽  
Health Insurance Data ◽  
Potential Health ◽  
Radiologic Technologists ◽  
Incidence Data ◽  
Medical Radiation ◽  
Radiation Workers ◽  
Risk Of Cancer

BackgroundMedical radiation workers occupy the largest group of radiation workers and the numbers are rapidly increasing worldwide. This presentation purposes to report findings from the Korean medical radiation workers’ study.MethodsData on all diagnostic medical radiation workers enrolled at the national dose registry between 1996 and 2011 (n=94,396) were merged with the death and cancer incidence data with coverage through the end of 2015. We reconstructed historical radiation doses and estimated organ-specific doses for all workers. The cancer risks were calculated using standardized mortality ratios (SMRs), standardized incidence ratios (SIRs), excess relative risk (ERR), and lifetime attributable risk (LAR). For radiologic technologists (n=12,906), we conducted a survey and merged the data with the national health insurance data of 2006–2016 for investigation of non-cancer diseases.ResultsThe mean cumulative badge doses for all workers were 10.6 mSv (men) and 2.7 mSv (women). Medical radiation workers have more favorable mortality than in general population for all causes of death among men (SMR=0.45) and women (SMR=0.49). Based on 2192 of primary cancer cases, the SIR for all cancers significantly decreased in men (SIR=0.88) and increased in women (SIR=1.10). However, there were no significant ERRs of all cancer incidences in both men and women. LARs for all cancer combined ranged from 9 to 402 per 1 00 000 varied by sex and job title. Among radiologic technologists, the odds ratios for cardiovascular diseases showed a significant increasing trend with colon doses (trend p=0.024) after adjusting for potential risk factors.ConclusionsOur findings provide some evidence of occupation radiation exposure and its health effects among medical radiation workers. The risks were generally small but not acceptable at high risk groups. Continuous monitoring and further follow-up is warranted to optimize the work practices for the protection of potential health risks in medical radiation workers.

Occupational radiation exposure and morbidity of circulatory disease among diagnostic medical radiation workers in South Korea

2020 ◽  
Vol 77 (11) ◽  
pp. 752-760
Author(s):  
Eun Shil Cha ◽  
Lydia B Zablotska ◽  
Ye Jin Bang ◽  
Won Jin Lee
Keyword(s):  
South Korea ◽  
Radiation Exposure ◽  
Circulatory Disease ◽  
Occupational Radiation Exposure ◽  
Relative Risks ◽  
Medical Radiation ◽  
Radiation Workers ◽  
Occupational Radiation ◽  
Circulatory Diseases

ObjectivesWe investigated the association between low-dose external occupational radiation exposure and circulatory disease morbidity among diagnostic medical radiation workers.MethodsA cohort of 11 500 diagnostic medical radiation workers was linked with the National Dosimetry Registry data and the National Health Insurance Service data. Relative risks (RRs) were calculated to explore the association between occupational factors and circulatory disease morbidity, and excess relative risks per 100 milligray (ERR/100 mGy) were estimated to quantify the radiation dose-response relationship.ResultsOverall, there were 2270 cases of circulatory diseases during 93 696 person-years of observation (average follow-up=8.1 years). RRs for hypertension were significantly increased for individuals who started working before 2000 compared with those who started in 2005 and later. ERR/100 mGy for all circulatory diseases was 0.14 (95% CI −0.57 to 0.99). Radiation risks of cerebrovascular diseases and ischaemic heart disease were non-significantly increased with estimates of individual cumulative doses to the heart (ERR/100 mGy=3.10 (−0.75 to 11.59) and 1.22 (−0.71 to 4.73), respectively). However, ERR estimates were generally more strongly positive for female versus male workers and for younger workers versus more than 50-year-old workers.ConclusionsThis study provides little evidence in support of a positive association between occupational radiation exposure and the overall risk of circulatory disease over a short follow-up period among medical radiation workers in South Korea. However, significantly increased RR with earlier year first worked, elevated ERR in female workers and young workers should be further followed up.

Mortality among Medical Radiation Workers in the United States, 1965-2016

2021 ◽  
pp. 1-63
Author(s):  
John D. Boice ◽  
Sarah S. Cohen ◽  
Michael T. Mumma ◽  
Sara C. Howard ◽  
R. Craig Yoder ◽  
...  
Keyword(s):  
United States ◽  
The United States ◽  
Medical Radiation ◽  
Radiation Workers

scholarly journals The risk of cancer among Lithuanian medical radiation workers in 1978–2004

Medicina ◽  
2009 ◽  
Vol 45 (5) ◽  
pp. 412
Author(s):  
Vitalija Samerdokienė ◽  
Vydmantas Atkočius ◽  
Konstantinas Valuckas
Keyword(s):  
Cancer Risk ◽  
Risk Evaluation ◽  
Incidence Rates ◽  
Medical Radiation ◽  
Radiation Workers ◽  
Indirect Standardization ◽  
And Gender ◽  
Risk Of Cancer ◽  
Gender Specific

Objectives. To describe the cohort of Lithuanian medical radiation workers and to estimate the risk of cancer during 1978–2004. Methods. Analysis of cancer risk evaluation was done using the retrospective cohort method, an indirect standardization. The observed numbers of cancer cases were obtained from the National Cancer Registry. The expected numbers were based on the age- and gender-specific incidence rates for the general Lithuanian population in 5-year periods. The standardized incidence ratios and 95% confidence intervals (assuming that the incidence of cancer follows the Poisson distribution) were calculated. Results. During the follow-up of 1978–2004, 159 cases of cancer were observed. There was no increased overall cancer risk in men (SIR=0.92, 95% CI=0.62–1.33, based on 29 cases) and women (SIR=0.97, 95% CI=0.81–1.15, based on 130 cases). The risk of leukemia among men and women was insignificantly increased. Conclusions. During the follow-up period, the overall cancer risk among medical radiation workers was the same as in the general population of Lithuania

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