increasing the length of healthy life: demographic and epidemiological reflections jean-marie robine...
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![Page 1: Increasing the length of healthy life: demographic and epidemiological reflections Jean-Marie Robine INSERM – EPHE, Paris and Montpellier, France Vivre](https://reader035.vdocuments.mx/reader035/viewer/2022070411/56649cc35503460f9498ba36/html5/thumbnails/1.jpg)
Increasing the length of healthy life: demographic and epidemiological
reflections
Jean-Marie RobineINSERM – EPHE, Paris and Montpellier, France
Vivre et être actif -beaucoup- plus longtemps:Perspectives sociales, démographiques et de santé
SPF Sécurité sociale, Bruxelles, 12 janvier 2015
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The three theories of the 1980s
• The compression of morbidity: According to Fries, life expectancy was close to its maximum in the 1980s. Medical and health behaviors progress can only reduce the number of bad years to a small part of the life expectancy (Fries, 1980).
• The expansion of morbidity: On the opposite side, according to Gruenberg and Kramer, the same medical progress will increase the survival of frail elderly people such as those with dementia (Gruenberg, 1977; Kramer, 1980).
• The dynamic equilibrium: Between these two extreme futures, Manton proposed a dynamic equilibrium in which increased survival is offset by better control of chronic diseases, keeping the proportion of life lived in good health more or less constant (Manton, 1982).
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The longevity revolution
• Worries about the future health status of the older population led the health authorities to build up population health surveillance systems in the 1980s including repeated cross sectional health surveys which allowed the functional health status of older people to be monitored.
• But no theory on health at that time was anticipating the longevity revolution which is currently occurring in most developed countries and which has led to impressive numbers of nonagenarians and centenarians.
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The longevity revolution
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Change in the number of centenarians in Europe vs. Japan
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Num
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f cen
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rians
(100
+)
Japan
Females Males Total
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Num
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(100
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Fourteen European countries
Male Female Total
Europe vs. Japan
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Mechanism
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Distribution des durées de vie individuellesen France depuis 1827 - pour 100.000 filles à la naissance
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5000
0 10 20 30 40 50 60 70 80 90 100 110 120
Nom
bre
de d
écès
(dx
)
1827 1847 1867 1887 1907 1927 1947 1967 1987 2007
Change over time in the distribution of the ages at death in France since 1827, female - for 100.000 newborn
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Distribution des durées de vie individuellesen France depuis 1827 - pour 100.000 filles à la naissance
0
1000
2000
3000
4000
5000
0 10 20 30 40 50 60 70 80 90 100 110 120
Nom
bre
de d
écès
(dx
)
1827 1847 1867 1887 1907 1927 1947 1967 1987 2007
Change over time in the distribution of the ages at death in France since 1827, female - for 100.000 newbornThe longevity revolution
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Compression vs. shifting mortality
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Bongaarts, 2005, 2009
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Fries, 1980
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How long are adult life durationsd(x) series
0
1 000
2 000
3 000
4 000
5 000
6 000
20 40 60 80 100 120
1876-80
1929-32
1988-93
Modal length of life (M)
Deviation above M
Maximum life span
Distribution of the ages at death in Switzerland1876-1880, 1929-1932, 1988-1993
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Europe vs. Japan
Robine and Saito, 2009
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Change in the number of centenarians in Europe vs. Japan
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
1945
1950
1955
1960
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
Num
ber o
f cen
tena
rians
(100
+)
Japan
Females Males Total
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
1945
1950
1955
1960
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
Num
ber o
f cen
tena
rians
(100
+)
Fourteen European countries
Male Female Total
Europe vs. Japan
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Maximum life span in Japan (empirical observations)
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Warning:Divergence and variability
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Trends in life expectancy at age 65
Denmark, the United Statesand the Netherlands
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Trends in life expectancy at age 65
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Number of centenarians (100+)
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Population ageing
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Population ageing(i.e., % of the older people within the total population)
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Population ageing
France Germany
(i.e., % of the older people within the total population)
Demographic dependancy ratio
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The oldest old support ratio
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World wide decline in the oldest old support ratio
As the number of people aged 50-74 for each person aged ≥ 85
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Disability-free life expectancyFrance vs. Sweden
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In France, women spend 42% of their years of life without disability (all disability levels conbined) versus 73% in Sweden
Disability-free life expectancy at age 65France vs. Sweden - in 2010 -
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Trends in disability-free life expectancyat age 65
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Compression of disability?
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Dynamic equilibrium?
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Expansion of disability?
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Le cas des Pays Bas(Engelaer et al, in Robine et al, 2013)
Netherlands, 1985-2010
Sources: Engelaer et al, in Robine et al, 2013
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Trends in prevalence of dementia
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Decline in the prevalence of dementia
Larson et al, NEJM 2013
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Thank you for your attention!
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Increasing the length of healthy life: demographic and epidemiological
reflections
Jean-Marie RobineINSERM – EPHE, Paris and Montpellier, France
Vivre et être actif -beaucoup- plus longtemps:Perspectives sociales, démographiques et de santé
SPF Sécurité sociale, Bruxelles, 12 janvier 2015
![Page 38: Increasing the length of healthy life: demographic and epidemiological reflections Jean-Marie Robine INSERM – EPHE, Paris and Montpellier, France Vivre](https://reader035.vdocuments.mx/reader035/viewer/2022070411/56649cc35503460f9498ba36/html5/thumbnails/38.jpg)
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Mortality and life expectancy above age 100
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Number of oldest old in Franceby single age, 80 years and over
100
1000
10000
100000
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010
Eff
ectif
s de p
opul
atio
n
80 81 82 83 84 85 86 87 88 89
90 91 92 93 94 95 96 97 98 99