Analysis on occurrence, progress of related disease ; the kind and exposure situation of dust

1.研究对象和方法1930年后进入该耐火砖厂的195名工人(男191人，女4人)为研究对象。从每名工人的工作和健康管理记录中收集胸部X线片、呼吸功能测试、开始工作年限、工作地点、工作内容、搬运材料、接尘作业时间和呼吸防护口罩使用情况等工作历史资料。通过对每个受试者的访谈，确认他们的吸烟习惯。结果1.分析尘肺的发生、进展与影响因素之间的关系。结果(1)接尘工龄与尘肺病程有显著相关性；(2)剃须、窑炉、混合、粉碎是尘肺的典型工种，粉磨、管理工段有统计学意义；(3)本研究未发现吸烟史对尘肺病程有显著影响。据推测，这与该研究对象极高的吸烟率以及缺乏关于吸烟的详细信息有关。[讨论]结合工作经历、搬运材料、健康体检等信息，了解尘肺患者的患病情况，有助于检查工作环境和管理健康状况。为了保证海量数据的质量、长期观测、使用和存储的方便性，对海量数据进行数字化是必不可少的。

1. Subjects and methodsOne hundred ninety five workers (191 males and 4 females), who entered the refractory brick plant after 1930, are chosen as subjects for analysis. Chest radiographs ; respiratory function test, data on work history such as starting year of work, worksite, contents of work, handling materials, duration of dust exposed work and use of respiratory protection mask were collected from work and health management records for each worker. Smoking habits were confirmed by interview to each subject. We analyzed the relationship among occurrence, progress of pneumoconiosis and contributional factors.2. Results(1) There was significant correlation between duration of exposure to silica dust and progress of pneumoconiosis.(2) Shaving, kiln, mixture and crushing were commonly observed as their typical job with pneumoconiosis, and statistical significance was observed in grinding and management sections.(3) It couldn't be observed significant effect of smoking history on progress of pneumoconiosis in this study. It is supposed to depend on the extremely high rate of smoking experience in this subject and lack of detail information about smoking.3. DiscussionIt was suggested that data about their conditions of pneumoconiosis were useful to examine the work environment and manage their health, combined with information of their working experiences, handling materials and health check-ups. It is essential to digitize such huge data for keeping their quality good, long term observation, convenience of usage and storage.