At that time, China was in a period of civil war and social unrest, with weak economic foundation, lack of medical and health conditions and widespread poverty, which led to the phenomenon of low life expectancy.
At the beginning of the founding of New China, there was a shortage of national medical institutions and medical personnel, poor medical equipment and a low level of medical and health security for urban and rural residents. At that time, the maternal mortality rate was as high as 1.500/65438+ ten thousand, and the infant mortality rate was as high as 200‰.
Life expectancy per capita is a comprehensive index to measure the current level of economic and social development and the level of medical and health services in a country or region. In 1949, the average life expectancy of China people was 35 years, 57 years in 1957, 68 years in198, and 77 years in 20 18. The rising figures have witnessed the great leap of medical and health undertakings in New China.
Calculation method of life expectancy:
A series of mathematical formulas are used to calculate the average life expectancy of the population. If described in words, the average life expectancy of the population is calculated by following up a group of people born at the same time, recording their deaths at all ages until the end of the last person's life, and then calculating the average life expectancy of the population according to the number of people who live to all ages.
Use the average life expectancy of this group of people to assume that the average life expectancy of a generation is the average life expectancy. In fact, it is very difficult to track the whole life process of a group of people born at the same time. In actual calculation, the mortality level of people of different ages in the same year can often be used to replace the mortality level of people of different ages in the same generation.
Then calculate the average number of people of all ages and the average life expectancy of the population this year. Therefore, the average life expectancy of the population is related to the contemporary mortality level.