| 焦淑芳,郭鼐,姚汝琳.煤矿工人实际接尘工龄及脱尘率变动趋势分析[J].Chinese journal of Epidemiology,1996,17(6):340-342 |
| 煤矿工人实际接尘工龄及脱尘率变动趋势分析 |
| Analysis on The Tendency of Practical Dust Exposure Year and The Out-of-dust Rate among Coalminers |
| Received:March 05, 1996 Revised:April 16, 1996 |
| DOI： |
| KeyWord: 煤矿工人 接尘工龄 脱尘率 |
| English Key Word: Coalminers Dust exposure year Out-of-dust rate |
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| Abstract: |
| 研究煤矿井下工人实际接尘工龄及脱尘率对评价粉尘危险度、进行尘肺发病预测具有重要意义。笔者采用回顾性队列研究方法,对某煤矿1958~1988年入矿工人实际接尘工龄及脱尘情况进行分析。结果表明:①工种对接尘工龄有影响。例如接尘10年时,采煤工累积脱尘概率为32.36%、掘进工为21.94%、辅助工为21.65%,差别非常显著;②接尘工龄与工人进矿年代有关。累积脱尘率达30%时,1958~1964、1965~1969、1970~1974、1975~1979年各队列接尘工龄分别为15年、12年、9年和7年。依此统计结果推测,1975~1979年进矿工人接尘工龄达20年者将低于30%;1980年以后进矿者实际接尘工龄则将会更短。 |
| English Abstract: |
| It is important to study the practical dust exposure year and out-of-dust rate for the evaluation of dust level and to predict pneumoconiosis incidence in coal miners. A Retrospective Cohort Study was carried out on the calculation of practical dust exposure year and the out-of-dust rate among coal miners employed during 1958-1988 in a mine. The results showed that job variety had a strong effect on dust exposure year and that out-of-dust rate beared relationship to the years of employment. It can be estimated that.the percentage of coalminers who were employed in 1975-1979 with dust exposure year reached 20 years would be less than 30%, and that those being employed after 1980 would be even lesser. |
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