The World Health Orrganization (WHO) has introduced terms for aging rate shown by a population.
Parameters:
(1) total size of the population
(2) number of people in the population >= 65 years of age
percentage of population >= 65 =
= (number >= 65) / (total population) * 100%
|
Percentage >= 65 Years
|
Term for Society
|
|
7.01 to 14%
|
aging
|
|
14.01 to 21%
|
aged
|
|
> 21%
|
super-aged
|
There may be need for another term if the percentage reaches 40 to 50%.
