Peripheral blood indicators in medical radiation workers in Yangpu District of Shanghai， 2017-2019
Journal Title: Shanghai Journal of Preventive Medicine - Year 2021, Vol 33, Issue 9
Abstract
<b>Objective:To explore the impact of occupational ionizing radiation exposure on blood indicators including white blood cell（ WBC）， red blood cell （RBC）， hemoglobin （Hb）， platelet （PLT） were analyzed. <b>Methods:A total of 237 medical radiation workers in Yangpu district， Shanghai were recruited and divided into observation group and control group， according to individual average dose of external exposure. The annual effective dose in observation group was 0.357 7-4.704 3 mSv， and the median dose was 0.536 8 mSv （0.441 2-0.893 8）. The annual effective dose in control group was 0.031 2-0.350 8 mSv， and the median dose was 0.199 2 mSv （0.143 8-0.252 8）. Routine blood tests were conducted twice in the occupational health examinations from 2017 to 2019 and the results were collected. Chi-square test， Mann-Whitney <italic>U</italic> test， and generalized estimating equations （GEE） model were used for statistical analysis. <b>Results:Compared to the first examination， the risk of having abnormal Hb increased （<italic>OR</italic>=1.029， 95%<italic>CI</italic>： 1.006-1.053）. After adjusting the factors of age， gender， seniority and exposure time， the risk of Hb abnormality in the observation group was lower than that in the control group （<italic>OR</italic>=0.422， 95%<italic>CI</italic>：0.198-0.898）. There was no significant difference between the observation and control groups in the risk of abnormal WBC， RBC， and PLT. <b>Conclusion:Exposure to occupational ionizing radiation may increase the risk of abnormal Hb， while there is no significant change in WBC， RBC and PLT. Radiation workers should have full protection at work and be under appropriate occupational health management.
Authors and Affiliations
Wen-qian XU, Xin-xiang DAI, Jing-li ZHANG, Ya-ying ZHANG
Keywords
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