How old is old? Revising the definition based on life table criteria.
Denton
F T
FT
Spencer
B G
BG
D000328:Adult; D000367:Age Factors; D000368:Aged; D000569:Americas; D002170:Canada; D003710:Demography; D019049:Developed Countries; D015993:Life Tables; D009656:North America; D011153:Population; D011154:Population Characteristics; D012106:Research; D012737:Sex Factors; D009626:Terminology as Topic
Adult; Age Factors; Aged--determinants; Americas; Canada; Demographic Analysis; Demographic Factors; Developed Countries; Life Table Method; North America; Northern America; Population; Population Characteristics; Research Methodology; Sex Factors; Terminology