What Are Mortality Rates?

Mortality is used to measure the size of a certain size of the population and the number of deaths per unit time (overall or attributed to a specified factor). It is a problem studied at the population level. Human mortality is usually expressed in units of one thousand people per year; therefore, among a population of 100,000 with a death rate of 9.5, this represents 950 deaths per year in this population.

[s wáng l]

Pronunciation: s wán l

English: morality

Usually means "

Crude mortality, the ratio of the number of dead individuals in a region to the average population in the same period over a period of time (usually one year) is calculated for one thousand people.

The neonatal mortality rate is the sum of babies and fetal deaths (stillbirths) for every 1,000 births in humans. For other organisms, the number of dead larvae, larvae or seedlings is compared with all larvae, Seedlings are calculated.

Maternal mortality, for humans, per 100,000 deaths due to childbirth, for other organisms, the number of female (or hermaphrodite) individuals who are pregnant, conceived or bearing fruit, and all females (or hermaphrodites) The number of individuals is calculated.

Infant mortality, which applies only to humans, is less than one year old per 1,000 births.

The top ten countries with high infant mortality are:

according to

Population age nutrition level Diet and access to clean drinking water medical level

Mortality is an important indicator of the health of the population. In areas where productivity is low and medical and sanitary conditions are poor, mortality is high. Before the 19th century, the mortality rate in countries around the world was generally above 30 . China's mortality rate was at a relatively high level for a long time before 1949. The mortality rate during the Republic of China reached 28 to 33 . After the founding of the People's Republic of China, the mortality rate dropped rapidly. It was 20 per thousand in 1949, 10.80 per thousand in 1957, 7.60 per thousand in 1970, 6.87 per thousand in 1977, 6.69 per thousand in 1986, and 6.28 per thousand in 1990, and it is at a low death rate worldwide.

Mortality of provinces in China in 2010

Calculating age group mortality is important in analyzing population mortality. The mortality rates of men and women and different ages are very different from those of different causes of death. The mortality rates are higher in infancy and childhood, higher in men than in women, lower in middle-aged and young people, reaching the lowest point at the age of 8 to 15, It gradually increased afterwards until all died. The mortality distribution of each age group is V-shaped. With the gradual improvement of medical and health conditions, the order of the causes of death in China has changed significantly. In the 1950s, deaths due to respiratory diseases, acute infectious diseases, and tuberculosis accounted for the top three. In 1957, the death rate of respiratory diseases in some cities was 120.3 deaths per 100,000 people, accounting for 16.86% of the total deaths; the death rate of acute infectious diseases was 56.6 deaths per 100,000 people, accounting for 7.93% of the total deaths; The death rate from tuberculosis is 54.6 deaths per 100,000 people, accounting for 7.51% of the total deaths. The three deaths together accounted for 32.3% of the total deaths. In the 1980s, the top three were cerebrovascular disease, heart disease and malignant tumors. In 1985, the death rate of heart disease in some cities was 131.04 deaths per 100,000 people, accounting for 23.39% of the total deaths; cerebrovascular death rate was 11.752 deaths per 100,000 people, accounting for 20.98% of the total deaths; The death rate was 113.86 deaths per 100,000 people, accounting for 20.32% of the total deaths. The three together accounted for 64.69%.