Study On The Influence Of The Death Cause Of Chinese Population On Life Expectancy

Health is the most basic survival guarantee for the population,and it is also the eternal pursuit of mankind.Life expectancy is one of the indicators for measuring the death level of a population.It is also an important indicator for measuring the health level and socio-economic development level of a country or region.With the rapid development of the economy and society and the continuous improvement of people's living standards,the health status of Chinese residents has been greatly improved,and the rapid increase in life expectancy is essentially the result of structural changes in the cause of death.In response to the new health challenges brought about by changes in urbanization,industrialization,population aging,to achieve the goal of achieving a life expectancy of 79 years in the "Healthy China 2030" Outline for 2030,it is of great significance to study the trend of population life expectancy from the perspective of population death.The article firstly analyzes the main causes of death in different populations from 2002 to 2016,and discusses the differences in the main diseases and causes of death during the decline of death levels.Secondly,on the basis of the adjustment of the under-reported mortality rate,understand the changing trend of life expectancy of different population groups.Subsequently,the Arriaga decomposition method was used to decompose the life expectancy on age-specific mortality and death-cause mortality,and to quantify the contribution of different age groups and different causes of death to changes in life expectancy,and focus on the changes in gender differences in life expectancy and urban-rural differences affected by different ages and different causes of death.Finally,the cause of life expectancy after removal of a disease was examined by de-caution analysis.The study found that after entering the 21st century,the composition of death causes in China has changed significantly,malignant tumors,cerebrovascular diseases,heart disease,respiratory diseases,and injuries and poisoning have become the top five causes of death for the health of our population.There are also significant gender differences and urban-rural differences in the major health causes of the main causes of death.The most significant gender differences are malignant tumors and heart disease.The most significant differences between urban and rural areas are malignant tumors,cerebrovascular diseases,and injuries and poisoning.In 2002-2016,the average life expectancy in China increased from 71.27 years to 76.87 years.Among them,the improvement of respiratory diseases contributed 1.65 years to the growth of life expectancy,and the elderly group over 65 years old contributed 70.79%of them;The improvement in injury and poisoning contributed 0.98 years to the increase in life expectancy,and the young people aged 0-44 contributed 84.66%;The improvement in cerebrovascular disease contributed only 0.22 years to the increase in life expectancy,mainly due to the increased mortality of cerebrovascular disease in the elderly population over 65 years of age.Based on the above conclusions,this paper proposes specific policy recommendations for further improving the life expectancy of our residents.