煤矿职业人群横断面研究中的患病率比较

Prevalence compari son in cross-sectional study of mining popu lation

用典型抽样方法调查了8个煤矿近3万名矿工的接尘史,用自编程序进行了时点患病率分析。结果表明,工种、工龄是计算粗患病率时的主要混杂因素。本文用1万人作为煤矿标准工种、工龄构戍,计算了双变量调整率。旨在比较不同煤矿的病情时,能真实地将比较煤矿间的实际相对差异反映出来,为进一步的病因研究提供科学依据。

Exposure histries of thirty thousand workers from eight coal mines were investigated by typical sampling technique, point prevalence was calculated with self-made programe. Results showed that working jobs and seniority were the major confounding factors to the prevalences calculation. By use of Ten thousand miners as standardized continent of jobs and seniority double adjusted rates had been calculated. It had shown itself to be advantageous in obtaining the actual relative differences among various mines during comparative study of the health status of their miners and in providing scientific evidences for further etiological study.