Age distribution
Age Distribution
Age distribution (pronunciation: /eɪdʒ dɪstrɪˈbjuːʃən/) refers to the proportion of individuals of different ages within a population. The concept is crucial in demography, the scientific study of populations, and has significant implications for sociology, economics, and public health.
Etymology
The term 'age distribution' is derived from the English words 'age', meaning the length of time that a person has lived or a thing has existed, and 'distribution', which refers to the way in which something is shared out among a group or spread over an area.
Related Terms
- Population Pyramid: A graphical representation of the age distribution of a population.
- Demographic Transition: The transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.
- Life Expectancy: The average period that a person may expect to live.
- Dependency Ratio: A measure showing the number of dependents, aged zero to 14 and over the age of 65, to the total population, aged 15 to 64.
Age Distribution in Demography
In demography, age distribution is used to help understand the composition of a given population. It can provide insights into the population's history, current status, and future trends. Age distribution data is often represented in a population pyramid, which provides a clear visual representation of the age and sex distribution of a population.
Age Distribution in Economics
In economics, age distribution can impact various aspects such as labor supply, savings rates, and consumption patterns. For instance, a younger population might indicate a larger workforce in the future, while an older population might suggest higher healthcare costs.
Age Distribution in Public Health
In public health, understanding age distribution is crucial for planning and implementing health services. For example, a population with a high proportion of elderly people may require more healthcare resources for chronic diseases.
External links
- Medical encyclopedia article on Age distribution
- Wikipedia's article - Age distribution
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