肿瘤死因对期望寿命损失的统计分析

The Statistical Analysis for the Effect of Death From Neoplasms on the Lose of Life Expectancy

目的探求肿瘤死因对期望寿命损失的影响。方法依据 WHO网址提供的有关资料〔1997年 3个国家 (捷克、加拿大和希腊 )不同性别各年龄组的人口数 ,全死因死亡数和肿瘤死因死亡数〕,应用简略寿命表和去死因寿命表方法 ,比较 3个国家不同性别各年龄组的期望寿命 ,以及肿瘤死因对期望寿命损失的影响。结果 3个国家中 ,希腊女性组期望寿命最高 ,lx曲线也最高 ,直至 6 5～ 74岁组 ,呈下降趋势 ;相反 ,捷克男性组期望寿命最低 ,lx曲线也最低 ,4 5～ 5 4岁组即呈现下降趋势。同时 ,统计分析显示 ,除 75～岁组外 ,其余各年龄组期望寿命的高低与肿瘤死因对期望寿命损失的影响呈负相关 (r=- 0 .90 5 ,0 .0 1<P<0 .0 5 ) ,但 75～岁组中 ,期望寿命与肿瘤死因损失的影响不呈相关 ,可能与其他死因或自然死亡率有关。结论肿瘤死因可引起期望寿命的严重损失 ,且肿瘤死因对生命的威胁于低年龄阶段较高年龄阶段更显著 ,因此 。

Objective In order to pursue the effect of malignant neoplasms on the lose of life expectancy.Methods The related data included population in the age sex specific groups,numbers of death from all causes and numbers of death from malignant neoplasms in Czech,Canada and Greece in 1997,which were obtained from WHO web.The life expectancy and the effects of malignant neoplasms on it were compared in the three countries with the brief life lists and the life lists without death causes.Results The life expectancy and the curve (lx)in Greece female group were the highest among the three countries.The lx began to decline from the group aged 65～74 years old.On the contrary,the lowest life expectancy and lx appeared in the Czech male group,and it declined from the 45～54 years old.Meanwhile,the statistical analysis showed that there was the negative relation between the life expectancy and malignant neoplasms in all groups except over 75 years old group( r= 0 905,0 01<P <0 05),which might relate to the other death causes or the high nature mortality in the elderly.Conclusions Death from malignant neoplasms might seriously cause lose of the life expectancy,especially in the young age groups.Therefore hazard of malignant neoplasms was more severe than other causes to human.