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Multilingual Demographic Dictionary, second unified edition, English volume

Difference between revisions of "Aging"

Multilingual Demographic Dictionary, second unified edition, English vol.
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(Etienne van de Walle et al., second 1982 edition)
(Etienne van de Walle et al., second 1982 edition)
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[[en-II:aging]] [[ar-II:تهريم]] [[cs-II:stárnout]] [[de-II:Altern]] [[es-II:envejecer]] [[fr-II:vieillir]] [[it-II:invecchiare]] [[ja-II:加齢]] [[pt-II:envelhecer]] [[ru-II:Возрастов передвижка]] [[zh-II:出各年龄存活数或成长数]]  
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[[en-II:aging]] [[ar-II:تعمير]] [[cs-II:stárnutí]] [[de-II:Alterungsprozeß]] [[es-II:envejecimiento de la población]] [[fr-II:vieillissement]] [[it-II:invecchiamento]] [[ja-II:高齢化]] [[pt-II:envelhecimento]] [[ru-II:Старение населения]] [[zh-II:老化或老龄化]]  
 
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Revision as of 06:13, 3 February 2010

Aging  (AGING)


The mean age 1 of a population is the average age of all its members, the median age 2 is the age which divides the population into two numerically equal groups. When the proportion of old people in a population increases, we speak of the aging 3 of the population. An increase in the proportion of young people involves a rejuvenation 4 of the population. An old population 5 has a high proportion of old people, a young population 6 has a high proportion of young people or children. The term aging used above should not be confused with the technique used in population projection, which consists of aging 7 a population by applying survival probabilities (431-6) by age to determine the number of survivors at a later date.

  • 3. Also written ageing.
  • 4. The word younging is used by American demographers.

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