Discuss the factors affecting fertility and mortality.

Authors Avatar

Discuss the factors affecting fertility and mortality.

Georgina Rex

Word Count: 1966

Discuss the factors affecting fertility and mortality

Fertility is the number of live births in a defined population. It is calculated using two main indices, the crude birth rate, which is the number of births per thousand persons per year, and the total fertility rate, which relates to the number of births per year per thousand women between the ages of fifteen and forty-five. Mortality is the number of deaths in a defined population. It is calculated using two main indices, the crude death rate which is the number of deaths per thousand of the population over the period of one year and the infant mortality rate which is the measure of infants dying under one year of age, expressed per thousand.

It is easy to assume that birth rates are linked to economic advancement as shown on the following scatter graph. In countries where living standards have improved fertility has declined but fertility remains high where technology is backward and the living standards are low.

Relationship between fertility and economies.

The developed world saw a dramatic fall in birth rates in the last 50 years but the developing world has had a much slower decline. Relying only on this relationship between level of development and birth rates however is to ignore other factors affecting fertility. Social, political and demographic factors including the status of women in society, attitudes towards marriage and children and the power of religion are also seen to affect fertility.

The stage in the demographic transition i.e. the character of a population’s age-sex composition at a certain time, is a major factor effecting fertility. The following population pyramids indicate the typical age-sex characteristic of economically more developed (EMDC’s) and economically less developed countries (ELDC’s). ELDC’s generally have a progressive pyramid i.e. a pyramid indicating high birth rates and high death rates. The pyramid has a broad base due to a large part of the population being young. This affects the future fertility of that country as the large proportion of young females move into the fertile age group. For example China had a large proportion of it’s population in the 0-15 age group in the 1960’s and as the females moved into the fertile age group the population exploded, influencing the Chinese government to introduce the strict one child policy in the late 1970’s.

Join now!

EMDC’s generally have a regressive population pyramid indicating declining or little change in birth rates and death rates. With declining little change in the birth rates, which are already at a very low level, the fertility of a country declines. For example in Germany (9.16 births/1,000 population (2001 est.) the birth rate is so low that the government is concerned that the total population will decline, which could have a major impact on it’s economy.

Typical population pyramids of EMDC’s And ELDC’s.

The more advanced the level ...

This is a preview of the whole essay