| YU Ningle,WANG Jin,XU Cuizhen.An epidemiologic investigation of cancers among medical diagnostic X-ray workers of 1950-1996 in Jiangsu Province[J].Chinese Journal of Radiological Medicine and Protection,2001,21(4):307-310 |
| An epidemiologic investigation of cancers among medical diagnostic X-ray workers of 1950-1996 in Jiangsu Province |
| Received:September 18, 2000 |
| DOI： |
| KeyWords:Medical diagnostic X-ray Cohort Cancer incidence Relative risk |
| FundProject: |
| Author Name | Affiliation | | YU Ningle | Jiangsu Provincal Antiepidemic and Hygiene Station, Nanjing 210009, China | | WANG Jin | Jiangsu Provincal Antiepidemic and Hygiene Station, Nanjing 210009, China | | XU Cuizhen | Jiangsu Provincal Antiepidemic and Hygiene Station, Nanjing 210009, China | | 胡连之 | Jiangsu Provincal Antiepidemic and Hygiene Station, Nanjing 210009, China | | 侯璧君 | Jiangsu Provincal Antiepidemic and Hygiene Station, Nanjing 210009, China |
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| Abstract:: |
| Objective To research the phenomenon and characteristic of radiation oncogenesis among medical diagnostic X-ray workers. Methods The cancer incidence data of the fixed cohort from the beginning of 1950 to the end of 1996 were collected.The estimates of relative risk(RR)were calculated by AMFIT in Epicure(Hirosoft International Corp,1988-1992). Results During the period of 1950-1996 there were 312 cancers among 215 355 person-years at risk in a cohort of 7 701 subjects,including,medical diagnostic X-ray workers and workers of other departments in the same hospitals.The RR adjusted for sex and age for overall cancers was more than 1.The incidence of female breast cancer increased significantly(RR=3.3,95%,CI=1.39-8.07),and the relative risks for solid cancer and leukemia were 1.2 and 2.6,respectively.The average age of occurrence of malignant tumors was moved up from 55.0 years in the controls to 51.3 years in the X-ray workers. Conclusions There is a positive effect of radiation oncogenesis on medical diagnostic X-ray workers,although our sample size is not large enough to make a definite overall conclusion statistically.Further follow-up is needed |
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