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Gone up…now 77.6
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The Demography of Aging Lecture 3 – Chapter 3
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Demographics? Study of the size, distribution, and composition of a population 284.5 million in US…
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65 years & Older? 35 million…12.4% New England + Maine + New Hampshire + Vermont + Rhode Island + Connecticut + Montana + Idaho + Wyoming + Colorado + New Mexico + Arizona + Utah + Nevada 12.4% now 2020 16.5 2040 20.5 2060 20.8
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The Demographics of Life USA Source www.populationconnection.org/Communications/demfacts. PDF World 300 millionPopulation, Jan 20076.5 billion 77Population per square mile118 15Births per 1,000 people22 9Deaths per 1,000 people9 2.1Total fertility rate2.8 21% of pop under age 1530 13% of pop over age 657
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Us: 32 nd : 12.4
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Median Age is also increasing 50% Above 50% Below
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Demographic transitions No surprise increase in older adults Theory of Population Change: fertility & mortality will decline from high to low levels because economics & social development Stage I Hi BR Hi DR *Preindustrial Stage II Hi BR low DR Stage III low BR low DR
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Population Pyramid: bar graph age categories (5 yr) male & female length = percentages 3 types: Expansive: “Broad Base” More younger peeps Constrictive: fewer in younger peeps Stationary: = # peeps in all cats
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Age Distribution of the U.S. Population, by Sex: 1950 MaleFemale Millions Male Female 8.1%
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Age Distribution of the U.S. Population, by Sex: 2000 Millions MaleFemale = Year 1950
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Age Distribution of the U.S. Population, by Sex: 2050 MaleFemale Millions = Year 2000
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Baby Boomers
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What’s causing so many older people since 1900s? Cohort Baby Boomers (fertility) Declining infant & adult mortality Increases in life expectancy Lowering of Fertility “baby bust” (late 1960s-70s) 2045-2050 Slower to marry Fewer children Mortality rates: tot # of deaths in a year per 1,000 individuals Fertility rates: tot # of births in a year per 1,000 individuals Age composition: proportion of young & old in a society
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Fertility Rates USA
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2.33
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The human life cycle divisions are arbitrary differing from society to society and changing from one time in history to another The five stages of adulthood early adulthood (18-30), middle adulthood (30-50) Later adulthood (50-65) young-old age (65-80) old-old age (> 80) OctogenarianOctogenarian: Someone in their eighties. NonagenarianNonagenarian: Someone in their nineties. CentenarianCentenarian: Someone 100 or more. SupercentenarianSupercentenarian: Someone 110 years old or more (no upper limit) Riley (1986) "young-old" (ages 65 to 74) "old-old" (ages 75 to 85) "oldest-old" (over age 85) important
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1. SEX COMPOSITION: Sex Ratio: the # of males for every 100 females 1900: 102 1930: 100.4 1980: 94.5 1990: 95.1 2000:96.1 2025: 96.0
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12.4% (2000) 59% female 41% male 6 million more women!!!! At birth 105 boys to 100 girls 35 years of age Female begin to surpass Males Centenarians & super 1. SEX COMPOSITION
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Where to go to get a date…
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Race Ethnicity Composition of US 2003: Minorities represent about 18% of 65+ 2050: Projected 40% of 65+ 2. ETHNICITY
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Inequities among the races Blacks have lower life expectancy as compared to whites
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Inequities among the races
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- 5.4 - 6.3
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Where do older adults live?
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Where do older adults not live? CA 3.6 million (11%) Florida 2.7 (18%) New York 2.4 (13%) Texas 2.0 (9%) Alaska 5.5 % 1. LOCATION
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Old-age dependency ratio: 65+ (too old to work) _____________ 18-64 (working) 1930: 1:11 1980: 1:5.4 2000: 1:5 2030: 1:3 Familial old-age dependency ratio: 65 to 84 (elderly parents) ___________________ 45 to 54 (elderly children) 1980: 1.02:1 2000:.8:1 2030: 1.6:1
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