| ZHAO Yongcheng,WANG Jixian,ZHANG Wei.An analysis of cancer death risk among medical diagnostic X-ray workers in China,1950-1995[J].Chinese Journal of Radiological Medicine and Protection,2002,22(4):243-245 |
| An analysis of cancer death risk among medical diagnostic X-ray workers in China,1950-1995 |
| Received:October 23, 2001 |
| DOI： |
| KeyWords:Medical diagnostic X-ray worker ancer Risk of death |
| FundProject:日本体质研究会基金资助项目 |
| Author Name | Affiliation | | ZHAO Yongcheng | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China | | WANG Jixian | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China | | ZHANG Wei | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China | | 李本孝 | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China | | 樊体强 | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China | | 张景源 | Institute of Radiation Medicine, Chinese Academy of Medicine Sciences, Peking Union Medical College, Tianjin 300192, China |
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| Abstract:: |
| Objective To investigate effects of occupational radiation exposure on cancer death among medical diagnostic X-ray workers. Methods A cohort study on medical diagnostic X-ray workers and non-X-ray medical workers was carried out and a risk analysis of cancer death between 1950 and 1995 was conducted with the O/E system. Results A significant enhancement in cancer death risk for X-ray workers was found, especially those engaged in X-ray work in early calendar years.The overall cancer RR was 1.26, (95% CI:1.14-1.38).for leukemia it was 2. 48, (95% CI:1.68-3. 51);for esophagus cancer, 3.18, (95% CI:2.02-4.77);for liver cancer, 1.54, (95% CI:1.27-1.86);and for bone cancer, 2.48, (95% CI:1.00-5. 40).In the late calendar year cohort a significant enhancement of cancer death was seen only in esophagus cancer (RR=4 19, 95% CI:1.80-8.25) and lung cancer (RR=1.60, 95% CI:1.10-2. 25). Conclusion Long-term occupational X-ray irradiation can enhance the risk of cancer death when the cumulative dose reached a certain level.The significant enhancement of cancer death for leukemia and some solid cancers may be related to the occupational exposure to X-rays. |
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