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肺癌是一种多病因的常见病。近半个世纪以来,世界上大部分国家肺癌都在增加,对人类生命健康已构成严重威胁.据大连市1981～1986年生命统计资料恶性肿瘤死亡一直居首位、其死亡顺位前三位六年均是肺癌、胃癌、肝癌。肺癌的死亡率似有逐年升高之趋势.为能充分利用各年份间死亡率具体差别的全部信息,同时也能了解大连市区近几年肺癌死亡率变动情况,采用趋势检验,分析大连市区1981～1986年肺癌死亡率变动情况,现将结果报告如下:
Lung cancer is a common cause of multiple etiologies. In the past half century, most countries in the world have seen an increase in lung cancer, which poses a serious threat to human health. According to statistics of life from 1981 to 1986 in Dalian, the death of malignant tumors has always been the highest, and the top three death ranks. Six years are lung cancer, stomach cancer, and liver cancer. The mortality rate of lung cancer seems to increase year by year. To fully utilize the full information of the specific differences in mortality rates between years, it is also possible to understand the changes in the mortality rate of lung cancer in Dalian in recent years, and to use a trend test to analyze Dalian City. The mortality rate of lung cancer from 1981 to 1986 in the district is reported as follows: