核工业职工全因死亡的动态分析

A TREND ANALYSIS ON THE CAUSE OF ALL DEATH IN CHINA'S NUCLEAR INDUSTRY

应用ICD－9死因分类原则和流行病学调查方法，在核工业11个代表性单位进行了全因死亡调查。结果表明：死亡有逐年增高趋势（P＜0．01），并随年龄增长而增加（P＜0．05）；而平均死亡年龄、工龄均有逐年增高趋势（P＜0．05）．肿瘤死亡表现为逐年增高（P＜0．01），其中肺癌死亡在70年代中期开始增加，1985～1990年增加明显（P＜0．05）；肝癌、胃癌1975年后是增加趋势，但差异无显著性．循环系统疾病死亡自70年代逐年增加（P＜0．01），消化系统变化趋势不显著（P＞0．05），呼吸系统因矽肺死亡在60年代呈现一高峰，后下降至平缓.

ICD- 9 death classification principle and epidemiological method were applied to iuvestigate 11 representative units in China's nuclear industry. The results skowed that the death showed an increasing trend every yfar(P<0. 01) and increased as the age increases (P<0. 05). Both the mean death age and the standing years had a tendency to increase every year (P<0. 05). Death from tumors went up every year (P<0. 01 ). Among them death from lung cancer showed a significant increase,which began in 1975 and became evident during the year 1985 to 1990 (P<0. 05). Liver can cer and stomach cancer arose after 1975,however, the difference was not significant. Death from circulatory system arose every year since 1970s (P<0.01),and that from digestive system changed with no remarkable trend (P<0. 05). The death from respiratory system appeared a peak in 1960s due to silicosis and then turned moderate.