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Published on: December 25, 2021
[Risk of leukemia among diagnostic x-ray workers in China between 1950 and 1990]
Objective:
To explore the relationship between radiation and leukemia.
Methods:
Leukemia incidences (1950-1990) in 27011 diagnostic X-ray workers and in 25782 other medical specialists employed between 1950 and 1980 in China were compared.
Results:
The relative risk (RR) of leukemia in the diagnostic X-ray workers was 2.25-fold (95% C1=1.59-3.09, P<0.001) higher than that in the control group. The average age of the emergence of leukemia was 10.4 years younger in X-ray workers than in control group. The peak incidence of leukemia in X-ray workers occurred 10-14 years after engaging in X-ray work. The highest RR of leukemia was found in those who were engaged in X-ray work before 1965 or at age under 20 years.
Conclusion:
Incidence of Leukemia in X-ray workers increased and it was correlated with radiation dosage and duration.
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Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...