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

1. 对象与方法选取1930年以后进入耐火砖厂的工人195人（男191人，女4人）作为分析对象。胸片；从每个工人的工作和健康管理记录中收集呼吸功能测试、工作经历数据，如开始工作年份、工作地点、工作内容、处理材料、接触粉尘的工作时间和呼吸防护口罩的使用情况。通过对每个受试者的访谈来确定吸烟习惯。分析尘肺病的发生、进展与致病因素的关系。结果(1)二氧化硅粉尘暴露时间与尘肺进展有显著相关性。(2)剃须、窑炉、混合和破碎是典型的尘肺发病工种，磨矿和管理工种的尘肺发病有统计学意义。(3)本研究未发现吸烟史对尘肺进展有显著影响。这应该取决于这个学科中极高的吸烟经验率和缺乏关于吸烟的详细信息。讨论他们的尘肺状况资料，结合他们的工作经验、处理材料和健康检查资料，对检查工作环境和管理他们的健康是有用的。为了保证这些海量数据的质量、长期观察、使用和存储的便利性，对其进行数字化是十分必要的。

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.