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战后,日本恶性肿瘤死因顺位逐渐上升,1981年占国民死因的第一位。特别引人注目的是肺癌死亡率男女都一直增高,并且认为有持续增加的倾向。因此,本研究试图以分析恶性肿瘤的动态变化及其构成为目的,并分析肺癌的死亡与香烟消费量之间的时间关系。
After the war, the cause of the death of malignant tumors in Japan gradually rose. In 1981, it accounted for the first national cause of death. Of particular interest is the fact that the mortality rate of lung cancer has been increasing for both men and women, and it is thought that there is a tendency to continue to increase. Therefore, this study attempts to analyze the dynamic changes of malignant tumors and their components, and analyzes the relationship between the death of lung cancer and the consumption of cigarettes.