Fifth epidemiological investigation on tumor prevalence among medical X-ray workers in Chongqing, China
10.13491/j.issn.1004-714X.2022.03.002
- VernacularTitle:重庆市第五次医用X射线工作者肿瘤效应流行病学调查分析
- Author:
Mengyun WU
1
;
Jinhan WANG
2
;
Kui LI
1
;
Cheng YE
1
;
Wei LI
1
Author Information
1. Chongqing Center for Disease Control and Prevention, Chongqing 400042 China.
2. Institute of Radiation Medicine Chinese Academy of Medical Sciences, Tianjin 300192 China.
- Publication Type:OriginalArticles
- Keywords:
Medical X-ray workers;
Tumor;
Relative risk;
Occupational exposure;
Cumulative radiation dose
- From:
Chinese Journal of Radiological Health
2022;31(3):266-272
- CountryChina
- Language:Chinese
-
Abstract:
Objective To provide scientific data for the study of tumor prevalence among medical X-ray workers. Methods In a cohort study, radiation exposure and tumor occurrence were collected from medical X-ray workers and normal persons (control) in Chongqing, China. SPSS 24 software was used to calculate the incidence density of tumor in the follow-up cohort, as well as the relative risk (RR) and 95% confidence interval of various malignant tumors. Results A total of 934 subjects were followed up. By the end of the investigation, 109 cases of malignant tumor were recorded. Compared with the control group, the RRs of liver cancer and colorectal cancer were both 3.4. Dose-specific RR was calculated for the worker groups. Compared with the two groups with < 80 mGy and 80～200 mGy cumulative doses, the group with > 200 mGy cumulative dose showed 2.05 and 2.1 RRs for solid cancer, and 1.89 and 2.17 RRs for whole cancer, respectively. Conclusion The risk of liver cancer and colorectal cancer is higher for medical X-ray workers in Chongqing, and the risk of solid cancer and whole cancer is higher in the high cumulative dose group. Therefore, radiation workers should pay attention to the optimization of protection.
