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Underestimation of Radiation Doses by Compliance of Wearing Dosimeters among Fluoroscopically-Guided Interventional Medical Workers in Korea

Author

Listed:
  • Won Jin Lee

    (Department of Preventive Medicine, Korea University College of Medicine, Seoul 02841, Korea)

  • Eun Jin Jang

    (Department of Preventive Medicine, Korea University College of Medicine, Seoul 02841, Korea)

  • Kyeong Seo Kim

    (Department of Preventive Medicine, Korea University College of Medicine, Seoul 02841, Korea)

  • Ye Jin Bang

    (Department of Preventive Medicine, Korea University College of Medicine, Seoul 02841, Korea)

Abstract

This study aimed to estimate the level of underestimation of National Dose Registry (NDR) doses based on the workers’ dosimeter wearing compliance. In 2021, a nationwide survey of Korean medical radiation workers was conducted. A total of 989 medical workers who performed fluoroscopically-guided interventional procedures participated, and their NDR was compared with the adjusted doses by multiplying the correction factors based on the individual level of dosimeter compliance from the questionnaire. Ordinal logistic regression analysis was performed to identify the factors for low dosimeter wearing. Based on the data from the NDR, the average annual effective radiation dose was 0.95 mSv, while the compliance-adjusted dose was 1.79 mSv, yielding an 89% increase. The risks for low compliance with wearing a badge were significantly higher among doctors, professionals other than radiologists or cardiologists, workers not frequently involved in performing fluoroscopically-guided interventional procedures, and workers who did not frequently wear protective devices. This study provided quantitative information demonstrating that the NDR data may have underestimated the actual occupational radiation exposure. The underestimation of NDR doses may lead to biased risk estimates in epidemiological studies for radiation workers, and considerable attention on dosimetry wearing compliance is required to interpret and utilize NDR data.

Suggested Citation

  • Won Jin Lee & Eun Jin Jang & Kyeong Seo Kim & Ye Jin Bang, 2022. "Underestimation of Radiation Doses by Compliance of Wearing Dosimeters among Fluoroscopically-Guided Interventional Medical Workers in Korea," IJERPH, MDPI, vol. 19(14), pages 1-10, July.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:14:p:8393-:d:859096
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    References listed on IDEAS

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    1. Seulki Ko & Kwang Pyo Kim & Sung Bum Cho & Ye Jin Bang & Yae Won Ha & Won Jin Lee, 2021. "Occupational Radiation Exposure and Validity of National Dosimetry Registry among Korean Interventional Radiologists," IJERPH, MDPI, vol. 18(8), pages 1-11, April.
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