compression of morbidity 2006 james f. fries, md brussels march 22, 2006 0308061
TRANSCRIPT
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Compression of Morbidity 2006
James F. Fries, MD
Brussels
March 22, 2006
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Vision and Opportunity
• The health of seniors is our greatest national health problem
• The health of seniors is our greatest economic problem
• We know how to postpone ill-health and infirmity by ten or more years
• We know how to moderate medical costs by reducing the illness burden
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Reduction in Need and Demandfor Medical Care
• Healthy People Need Less Medical Care
• The Health and Economic Solutions are on the Demand Side
• The Period of Maximum Employee Vigor may be Extended by Health Enhancement Programs
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Reduction of Need and Demand Questions Sometimes Asked
• Will healthier people cost more by living longer?
• What is the length of the lag period between health risk reduction and positive health and cost benefits?
• Will we just make people healthier for their next employer?
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The Compression of Morbidity: Central Thesis
The age at first appearance of aging and chronic disease
symptoms can increase more rapidly than life expectancy
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Scenarios for Future Morbidity and Longevity
Morbidity Death
Present Morbidity
I. Life Extension
II. Shift to the Right
III. Compression of Morbidity
56
7765
8060
8056
76
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Chartbook on Trends in the Health of Americans / Health, United States 2005
Life expectancy at birth and at 65 years of age by sex: United States, 1901-2002
Source: Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System.
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1901 1910 1920 1930 1940 1950 1960 1970 1980 1990 2002
90
80
70
60
50
40
Life expectancy at birth
Life expectancy at 65 years
Male
Male
Female
Female
Lif
e e
xp
ecta
ncy
in
ye
ars
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Groups Threatened by the Paradigm of Compression of Morbidity
• Bioscientists Fearing Displacement of Funding
• Humanists Opposed to “Blaming the Victim”
• Geriatricians Worried about Lack of Preparation
• Pessimists Believing Goal Unachievable
• Demographers Vested in Contrary Predictions
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Evidence for Compression of Morbidity
• Multiple longitudinal studies documenting
morbidity compression by social class, exercise
level, education level, risk factors for heart
disease
• Multiple national surveys of disability since 1982
• Multiple randomized trials showing disability and
cost reductions with risk factor reduction
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POSTPONEMENT OF DISABILITY
The University of Pennsylvania Alumni Statistics
• 1741 subjects studied over 50 years to age 77
• Three groups - low, medium, high risk based on smoking, body weight, and lack of exercise health risks at ages 40 and 62.
• The low risk group had only one-half the cumulative lifetime disability of the high-risk group.
Vita et al, NEJM, 199003080613
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Cumulative Disability, Mean ValuesBars Represent S.E. of the Mean
0
0.5
1
1.5
2
All Subjects No InitialDisability
Alive andFollowed
Deceased
Low Risk Moderate Risk High Risk
Dis
abili
ty In
dex
Vita et al, NEJM, 199803080614
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Disability Index by Year and Risk Factor Category
0
0.05
0.1
0.15
0.2
0.25
1986/87 1988 1989 1990 1991 1992 1993 1994
MinimumDisabilityHigh Risk
ModerateRiskLow Risk
Dis
abili
ty In
dex
Vita et al, NEJM, 199803080615
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Disability Index by Age and Risk Factor Category
0
0.05
0.1
0.15
0.2
0.25
0.3
63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
MinimumDisabilityHigh Risk
Moderate Risk
Low Risk
Age
Dis
ab
ilit
y I
nd
ex
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Running and Osteoarthritis (OA): A 13-Year Study
Wang et al, Archives Internal Medicine, November 2002
538 Runners 423 Controls
Average Age 58 in 1984
Followed Annually for:
• Disability • Pain • Osteoporosis
• X-ray Progression of OA
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Disability by Age and Runner Status
Age Category
Community Control (n=249)
Runners Club (n=369)
Mean
Dis
ab
ilit
y
Score
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
50-54 55-59 60-64 65-69 70-74 75-79 80-84 85-90
Wang et al, 200203080618
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0.3 —
0.275 —
0.25 —
0.225 —
0.2 —
0.175 —
0.15 —
0.125 —
0.1 —
0.075 —
0.05 —
0.025 —
0 --- 59 60 61 62 63 64 65 66 67 68 69 70 71 72
Disability
Average Age, years
12.8y (95% CI, 8.3 to 20.6y)
8.7y (CI, 5.5 to 13.3y)
4.6y (CI, 2.5 to 7.3y)
| | | | | | | | | | | | | |
Runners (n=370)Community Controls (n=249)Postponement of disability (years)
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National Long-Term Care SurveysOver-65 Disability Distributions (%)
Manton and Gu, 2001
1982 1984 1989 1994 1999
Disabled 26.2 25.3 24.4 22.5 19.7
Mild Disab (IADL) 5.7 6.2 4.8 4.4 3.2
Moderate Disab (1-2) 6.9 7.0 6.7 6.1 6.0
Severe Disab (3-4) 3.0 3.1 3.7 3.4 3.5
Very Severe (5-6) 3.7 3.4 3.0 3.0 2.9
Institutionalized 6.8 6.6 6.1 5.7 4.2
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Recent Trends in Disability Among Older Americans
0
5
10
15
20
25
30
1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000
Year
NLTCS Any Disability
NLTCS ADL only
NLTCS IADL only
NHIS Any Disability
NHIS IADL only
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Self-Assessed Health Status as Excellent or Good: United States, 1991-2001
1991 1995 2000 2001
Total, % 89.6 89.4 91.0 90.8
Age, y
<18 97.4 97.4 98.3 98.2
18-44 93.9 93.4 94.9 94.6
45-54 86.6 86.6 88.1 88.3
55-64 79.3 78.6 82.1 80.8
> 65 71.0 71.7 73.0 73.4
> 75 66.4 67.8 67.8 69.2Source: Breslow, AJPH, 2006;96:17-19
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increased unchanged decreased
increasedAIDS
smoking
migraine
headaches
heart
transplant
decreased suicidecure
osteoarthritis
exercise
weight loss
Mortality
Morbidity
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A General Theory of Morbidity and Mortality
• Perturbations to the individual health may be classified quantitatively as increasing or decreasing morbidity and as increasing or decreasing mortality
• The individual is subject to many perturbations and it is usual for some to have positive and some negative effects
• Population morbidity and population mortality are the integrated sums of the positive or negative effects of perturbations on individuals
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Need and Demand ReductionRandomized Trials in Seniors
n time
health risk
score cost per person
savings per
person ROI
Bank of America 4,712
12 months -12% $29 $179 6.1
CALPers 57,268 12
months -10% $59 $300 5.1
Arthritis 809 6
months -7% $50 $260 5.2
Parkinson’s 290 6
months -10% $100 $570 5.7
Take Care of Yourself 2,833
12 months -17% $6 $20 3.5
Fries et al, Health Affairs, 1998
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The Key Targets for First Year Health Improvement and Cost Reduction
• Perceived Self-Efficacy
• Self-Management Skills
• High-Risk Persons
• Chronic Disease Patients
• Last Year of Life
• Low Birthweight Babies
• Absenteeism
• Productivity
• Corporate Image
• Employee Turnover
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ConclusionsTheory, Longitudinal Studies and Surveys
and Scientific Trials document that:
• Illness, infirmity, and frailty in populations may be postponed
by at least 8 to 12 years
• Disability is decreasing by 2% or more per year in many
developed countries. Mortality is decreasing at only 1% a
year, documenting Compression of Morbidity
• Health enhancement programs can improve health and
reduce costs in worksites, health plans, and in mature adult
populations
• Continued Compression of Morbidity is feasible
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