10个钨矿职工死因分析

MORTALITY ANALYSES FOR TUNGSTEN MINERS

对中南地区10个钨矿1972—1974年入矿(工龄至少1年)的在册职工28453人进行了队列研究。队列成员追访至1989年,死亡2870人,比全国居民死亡率计算的期望值略高(SMR=1.15,95％CI=1.11—1.19);主要是非恶性呼吸道疾病,特别是尘肺(SMR=66.79,95％CI=59.65—73.68)以及与呼吸道疾病相关的肺心病明显超高(SMR=8.19,95％CI=7.42—9.02),比全国居民死亡率高5倍。癌症死亡数在全死因中虽占第一位,但仅鼻咽癌轻度超高(SMR=1.73,95％CI=1.23—2.37),而肺癌死亡率明显偏低(SMR=0.53)。研究结果不支持矽肺与肺癌病因学相关的假说。

A cohort mortality study of 28453 subjects who employed in 1972-1974 and at least worked one year was conducted in central south China.AH subjects were followed up to 1989.2870 workers were known having died at the end of the study period, that is lightly higher than the expected based on the national general mortality (SMR=1.15, 95%CI=1.1-1.9).The non-malignent respiratory diseases, in particular pneumoconiosis and pulmonary heart disease were significantly increased. However, the cancer was lower than general population, although position from all cause of death was the first for tungsten miners. SMR from lung cancer was only 0.53.It suggested that there is no relationship between silicosis and lung cancer.