The most commonly used method of health risk assessment is to calculate an economic health status of local people and combine it with analysis, so this problem is also very common.
Extended data:
According to the definition of the World Health Organization (WHO), a country's aging rate (the proportion of people over 65 years old to the national population) is between 7%- 14%. If the aging rate exceeds 14%, it is called an aging country.
According to the United Nations, people over 65 years old in developed countries and people over 60 years old in developing countries are called the elderly (calculated by average life expectancy). In order to meet the needs of matching domestic research with international statistical data, China National Bureau of Statistics released two standards at the same time.