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目的分析669名放射工作人员周围血淋巴细胞微核率和微核异常率的水平及其与人均剂量和累积剂量的关系,为评价放射工作人员健康水平提供依据。方法比较不同性别、工龄、单位级别以及工作种类放射工作人员微核率和微核异常率的变化情况。结果不同工龄组放射工作人员微核率之间差异有统计学意义(P<0.05)。男、女和不同级别单位的放射工作人员微核异常率之间差异有统计学意义(P<0.05),其他比较组间的差异均无统计学意义(P>0.05)。除不同工龄组人群的微核率、不同级别单位和不同工种组人群的微核异常率分别与累积剂量呈线性关系(P<0.05)外,其他各比较组的微核相关指标与累积剂量均呈无规律变化。结论放射工作人员的微核率和微核异常率有较明显改变,应继续加强放射防护工作。
Objective To analyze the relationship between the frequency of micronuclei and micronuclei anomalies in peripheral blood lymphocytes of 669 radiological workers and their relationship with the average dose and cumulative dose for the purpose of evaluating the health status of radiation workers. Methods The changes of micronucleus rate and micronucleus anomalies were compared between different sex, length of service, unit level and working type radiographers. Results There were significant differences in the micronucleus rate of radiation workers in different age groups (P <0.05). There were significant differences in the abnormal rate of micronuclei among radiographers in male, female and different levels (P <0.05), but no significant difference was found in other groups (P> 0.05). In addition to the micronucleus rate of different age groups, micronucleus anomalies in different levels of units and different types of workers were cumulative dose and linear relationship (P <0.05), the other micronucleus related indicators and cumulative dose Irregular changes. Conclusions The micronucleus rate and micronucleus abnormal rate of radiation workers are obviously changed. Radiation protection should continue to be strengthened.