| Liu Yufei,Wang Furu,Yu Ningle,et al.Risk analysis of malignant tumor among medical diagnostic X-ray workers during 1997－2011 in Jiangsu province[J].Chinese Journal of Radiological Medicine and Protection,2015,35(6):455-460 |
| Risk analysis of malignant tumor among medical diagnostic X-ray workers during 1997－2011 in Jiangsu province |
| Received:March 09, 2015 |
| DOI：10.3760/cma.j.issn.0254-5098.2015.06.012 |
| KeyWords:Medical X-ray workers Malignant tumor Radiation carcinogenesis |
| FundProject:卫生行业科研专项(201002009) |
| Author Name | Affiliation | E-mail | | Liu Yufei | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Bejing 100088, China | | | Wang Furu | 江苏省疾病预防控制中心 | | | Yu Ningle | 江苏省疾病预防控制中心 | | | Xu Xiaosan | 江苏省疾病预防控制中心 | | | Cheng Xiaoqing | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Bejing 100088, China | | | Fu Yinghua | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Bejing 100088, China | | | Sun Quanfu | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Bejing 100088, China | qfusun@nirp.cn |
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| Abstract:: |
| Objective To continue following up the cohort members in Jiangsu province who were the largest subgroup in Chinese medical X-ray workers cohort subgroups on radiation carcinogenesis and analysis the cancer risk of medical X-ray workers which might be induced by chronic low-dose ionizing radiation between 1997 and 2011. Methods A retrospective cohort study was utilized to accumulate data. Epicure was applied to compute cumulative person years (with module of Datab) and relative risk(including 95%CI) of malignant tumor on exposed group(with module of AMFIT) while the factors such as sex and attained-age were adjusted in the cohort members. Results The 7 708 follow-up members included 3 668 medical X-ray workers. The cumulative person-year in the cohort members was 94 651.2 (1997-2011) and its lost rate was 5.79%. During the follow-up period, 441 cases had became cancer patients. The relative risk of all cancers was 1.44(95%CI:1.18-1.75), so was the solid cancers. Significant elevated risks of cancer were found on lung (RR=1.95, 95%CI:1.30-2.92), esophagus(RR=3.04, 95%CI:1.20-7.70), lymphoma(RR=2.24, 95%CI:0.67-7.48), leukemia(RR=1.57, 95%CI:0.33-7.39),throat(RR=2.47) and thyroid (RR=2.80,95%CI:0.24-32.26) among medical X-ray workers. However, The RR of malignant tumors might not be associated with occupational exposure to ionizing radiation if we considered the lost factors (RR=1.2, 95%CI: 0.94-1.46) Conclusions The RR of malignant tumors such as the cancer on lung, esophagus, thyroid among the medical X-ray workers in Jiangsu province were enhanced which might be associated with occupational exposure to ionizing radiation. |
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