title: Birth trends, survival improvements, and aging.
abstract: "Decompositions of a change in the proportion of aged persons on the basis of the stable population theory [have] emphasized the contribution of fertility change. This study confirmed that cohort survival improvements largely contributed to changes in the proportion of aged persons and the average age since the late 1970s. Particularly, the cohort survival effects for those belonging to the age group 65+ at the time concerned was great." The geographical focus is on Japan.
mesh_terms: D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D001208:Asia; D015331:Cohort Studies; D003710:Demography; D019049:Developed Countries; D005202:Asia, Eastern; D005298:Fertility; D007564:Japan; D008136:Longevity; D009026:Mortality; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D015996:Survival Rate
keywords: Adult; Age Distribution--determinants; Age Factors; Aged; Asia; Cohort Analysis; Demographic Factors; Developed Countries; Eastern Asia; Fertility; Japan; Length Of Life; Mortality; Population; Population Characteristics; Population Dynamics; Research Methodology; Survivorship