challenges to eliminating disparities in the us vijaya k. hogan, mph, drph clinical associate...
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Challenges to Eliminating Disparities in the US
Vijaya K. Hogan, MPH, DrPHClinical Associate Professor, Dept Maternal and Child Health
Adjunct Assistant Professor, Dept OBGYN, UNC School of MedicineDirector, Curriculum on Health Disparities
Gillings Global School of Public HealthUniversity of North Carolina at Chapel Hill
Maternal and Child Health Epidemiology Conference
Plenary I: Measuring and Eliminating Racism and Racial Disparities in MCH: The Need for New Paradigms
Wednesday, December 10, 2008Atlanta, GA
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Outline
1. What are disparities?
2. What do disparities look like?
3. What causes disparities in health?
4. What challenges do we face in eliminating them?
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What are disparities?
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Disparity(definition)
When one group of people gets sick and/or dies at a higher rate than other groups of people
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NIH definition
“differences in the incidence, prevalence, mortality and burden of diseases and other adverse health conditions that exist among specific population subgroups in the US”. (NIH)
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UNC-CH definition
Inequities in disease and well-being that come from discrimination and unequal access to society’s benefits, such as quality education, good jobs, decent and affordable housing, safe neighborhoods and environments, nutritious foods, and adequate healthcare. These inequities result in disproportionately higher rates of death, disease, and disability and have adverse consequences on the physical, mental, spiritual, and social well-being of population groups who, historically and currently, do not experience equivalent social advantage. These groups include, for example, African Americans, American Indians, Hispanics/Latinos, Asian Americans, Hawaiians and Pacific Islanders, people with disabilities, Lesbian/Gay/Bisexual/Transgender/Queer persons, and people with lower incomes.
Workgroup on Engaged Institution for Eliminating Racial and Ethnic Health Disparities, 2007
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In the US: • African Americans, Native Americans and
subgroups of Latinos and Asians are more likely to get sick and die sooner than other groups of people.
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What do disparities look like?
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How Long People Are Expected To Live
20
30
40
50
60
70
80Years
White
Black
0
SOURCE: CDC/NCHS, National Vital Statistics Systems, 1900-96
1950
1970
1990199
61980
1960
1900
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Age-Adjusted Death RatesUnited States
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How likely it is that a baby will die before age 1 in the US
1368.5
868.5
604.6 595.4497.7
0
200
400
600
800
1000
1200
1400
1600
Black Am/Ind White Hispanic Asian/Pas
Race and Ethnicity of Mother
Deaths per 100,000 live
births
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How likely it is that a baby will be born too soon
50
70
90
110
130
150
170
190
1989 1990 1991 1992 1993 1994 1995 1996 1997
Rat
e p
er 1
000
Liv
e B
irth
s
Black Nat Am Hispanic API White
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Respondent-Assessed Health Status
18
9.3
15.3
0 5 10 15 20
Non-Hispanic black
Non-Hispanic White
Total Hispanic
SOURCE: CDC/NCHS, National Health Interview Survey, 1992-1995
Percentage
Fair or Poor health (age-adjusted)
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Obesity (BMI<= 30.0)
43.2
37.4
22.4
0 10 20 30 40 50
Blacks
Whites
Mexican Americans
SOURCE: CDC/NCHS, Second National Health and Nutrition Examination Survey, 1976-80 Third National Health and Nutrition Examination Survey, 1988-94
Percent
Female
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Percent of Philadelphia Childbearing Women with a Shelter Episode: By Race/Ethnicity,
Education, and Parity
05
1015202530354045
<11 12+ <11 12+ <11 12+
Black White LatinaParity by Years of Education by Race
5 Ye
ar P
reva
lenc
e Ra
te
0 1 2,3 4+
Culhane, 2003
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Disparities exist.
Okay, we get that.
Now what do we do to get rid of them?
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All knowledge production in the area of health disparities should be aimed toward understanding why they exist and most importantly, what can we do to eliminate them.
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What causes disparities?
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The Circles of Influence on Health
Kaplan, et al. (2000). A Multilevel Framework for Health in :Promoting Health. Washington, DC: National Academy Press
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Disparity: Contributing factors
• Health care• Culture• Social factors• Environmental
factors• Stress and
“Weathering”
• Racism • Economic factors• Neighborhood factors• National, state or
local Policies• Behavior* * Not shown to be
consistent contributor across all diseases
(Kington and Nickens) in: America Becoming: Racial Trends and their Consequences, National Academy Press,2000
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What challenges do we face in eliminating
disparities?
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Challenge # 1
Limitations in knowledge, research and clinical practice present barriers to eliminating disparities
Example: prenatal care and preterm birth
We have to actually have an effective prevention strategy or treatment for the disease to be able to make a difference in the disparity
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Preterm Delivery Rates by Maternal Race/Ethnicity and Trimester of Initial Prenatal CareSingletons, United States, 2000
0
2
4
6
8
10
12
14
16
18
20
1st 2nd 3rd
Pe
r 1
00
Liv
e B
irth
s
N-H White N-H Black Hispanic Nat Am API
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Challenge #2
Reducing disease is not the same as reducing the disparity
Reducing disparity requires different actions above and beyond evidence-based risk/prevention interventions
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Infant Mortality Rates Due to SIDS, United States by race, 1973-1998
10
100
1000
70 80 90 96 98 00
Year of Death
Dea
ths
per
100
,000
live
bir
ths
AllWhiteBlack
AAP
SIDS Campaign
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Challenge #3
We do not consistently distinguish between health care disparity and health outcome disparity
Differences in medical care is only one of many contributors to overall health disparities
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Is it this?
Simulation 1: % Contribution to health disparity
health care42%
behaviors10%
racism5%
poverty15%
genes10%
other3%
culture10%
environment5%
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Or this?
Simulation :Estimated % Contribution to Health Disparity
health care10%
behaviors20%
culture10%
environment15%
racism15%
poverty25%
genes0%
other5%
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Challenge #4
Causality is more complex than we acknowledge: intersecting risks
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What makes African American populations different and at higher risk?Complexity of causality: Overlapping of risk
Prevalence
Risk Factor Pop A Pop B
A 20% 19%
B 20% 18%
C 20% 22%
D 10% 10%
Any 3 5% 45%
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Similar population risk prevalence; different configurations between
populations: multiple interacting risks
Population A
Population B
Subpopulation of B with multiple overlapping risks
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Qualitative Evidence: Harlem BirthRight Project– Identified unique stressors for African American women (race X
class X gender interactions)
– Documented existence of stress in all aspects of African American women’s lives
– Documented multiple concurrent stressors among African American women
– The stress of constantly dealing with multiple burdens• “Sojourner Truth Syndrome”
– Racism exacerbates other risks, limits resources to “unstress”
Mullings and Wali, 2001: Stress and Resilience-the Social Context of Pregnancy in Central Harlem
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Economic and Social Hardships during pregnancy, by ethnicity MIHA, 2002-2003
African American Anglo< Poverty 44.7 14.9Hard to make ends meet 22.4 10.7Food insecurity 19.3 10.4Food insecurity and hunger 7.3 3.3No practical support 10.2 6.2No emotional support 7.2 3.9Separated or divorced 16.4 4.6Homeless 7.2 2.3Involuntary job loss 14.2 6.8Partner job loss 16.9 11.0Incarceration of partner 10.5 2.5Domestic Violence 5.8 1.81-5 hardships 70.0 39.0Source: Braverman P. (Center on Social Disparities in Health, UC-SF))
Presented at Jacobs Institute of Woman’s Health Conference, May 2005
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Challenge # 5
Historical insults contribute to current disparities
• Until the effects of past historical ills are undone, disparities will not be eliminated
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American Slavery: 1619-1865
“The bound labor of at least twelve generations of black people”. • Slavery created wealth for slaveholders, wealth that was
translated into extraordinary political power. The slave trade and the products created by slaves’ labor, particularly cotton, provided the basis for America’s wealth as a nation, underwriting the country’s industrial revolution and enabling it to project its power into the rest of the world.
Slavery and the Making of America (PBS)
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TIME SPAN
CITIZENSHIP STATUS -YRS
Experience accounts for this proportion of time in US
STATUS HEALTH & HEALTH SYSTEM EXPERIENCE
1619-1865
246 years 64%
Chattel slavery
Disparate/inequitable treatment poor health status & outcomes. “Slave health deficit” & “Slave health sub-system” in effect
1865-1965
100 years 26%
Virtually no citizenship rights
Absent or inferior treatment and facilities. De jure segregation/ discrimination in South, de facto throughout most of health system. “Slave health deficit” uncorrected
1965-2006
41 years
10% Most citizenship
rights: USA struggles to transition from segregation & discrimination to integration of AA
So. med school desegregation 1948. Imhotep Hospital Integration Conf 1957-1964, hospital desegregation in federal courts 1964. Disparate health status, outcomes, and services with apartheid, discrimination, institutional racism and bias in effect.
TOTAL
387 years
100%
HEALTH DISPARITIES/INEQUITIES
AFRICAN AMERICAN CITIZENSHIP STATUS & HEALTH EXPERIENCEFROM 1619 TO 2006
Source: Byrd, WM, Clayton, LA. An American Health Dilemma, Volume 1, A Medical History of African Americans and the Problem of Race: Beginnings to 1900, New York, NY: Routledge. 2000.
“Struggle”
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Historical experiences of slavery, segregation, discrimination created economic and environmental disparities– Median family income for Blacks and Hispanics <$28K,
Whites and Asians $>45K(Census, 1990)
– Net wealth: Blacks $4,418, Whites $45,740 (Eller and Fraser 1995)
– Blacks more likely to live in low-income, segregated areas-”concentration of risk”; residential segregation implies restriction in options for mobility
– Blacks less likely to own homes– 17% African Americans (in metro areas) live in extreme
poverty; 1.4% Whites (in metro areas) live in extreme poverty
Census, 1990
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Challenge #6
Social factors are largest contributor to disparities; but often ignored. Medical factors get most focus and funding
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“The causes of health disparities are multiple. They include poverty, level of education, inadequate access to medical care, lack of health insurance, societal discrimination and lack of complete knowledge of the causes, treatment and prevention of serious diseases affecting different populations. The causes {of health disparities} are not genetic, except in rare diseases like sickle cell…….Eliminating health disparities will require a cross-cutting effort, involving not only various components of the Federal government, but the private sector as well…
Ruth Kirstein, Acting Director of NIH. 2001
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“….racial and ethnic disparities in health status largely reflect differences in social, socioeconomic, behavioral risk factors and environmental living conditions. Health care is therefore necessary but insufficient in and of itself to redress racial and ethnic disparities in health status. A broad and intensive strategy to address social-economic inequality, concentrated poverty, inequitable and segregated housing and education…individual risk behaviors as well as disparate access to medical care is needed to seriously address racial and ethnic disparities in health status”
Institute of Medicine—Unequal Treatment Report 2002
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Potential Targets for intervention: Social Environment
• The organization of the home we live in• The connections we have to other people• The neighborhood in which we live• Organization of our workplace (or school)• Our level of access to goods, services and resources of society• The built environment that surrounds us• Socioeconomic status• The way others in society treat us; the amount of power and/or
control others have over us• The dominant political ethos/environment
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Challenge #7
There does not yet exist an evidence base for how to eliminate disparities
And there is limited support for the development of one
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Challenge # 8
Our way of doing business in health precludes the development of an evidence base.
We consistently and systematically eliminate any possibility of addressing social contributors (e.g. the largest contributors)
“Feasibility” as a criteria for choosing intervention strategies limits progress toward eliminating disparities
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Change the question
How do we make it more feasible to address social contributors
to health and health disparities?
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Summary of Challenges1. We need more and better science to address today’s
complex health issues, including disparities
2. Having an evidence based intervention for eliminating the disease does not necessarily eliminate the disparity
3. Health care disparity is only one of MANY contributors to health status disparities. Social factors, not just medical care factors contribute to adverse perinatal outcomes
4. Causality is more complex than we acknowledge: risks overlapping risk is one characteristic of populations vulnerability
5. Historical insults create current vulnerability; contribute to current disparities
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Summary, cont
6. Social factors are the LARGEST contributors to health disparities. Medical factors and behaviors get most focus and funding
7. Evidence base for eliminating disparities does not exist; no dedicated funding source to support its development
8. “Feasibility” as criteria for choosing intervention strategies limits progress toward eliminating disparities
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ConclusionDeveloping strategies for the elimination of disparities in perinatal health is complex:
Entails ALL of the following:– Undoing historical inequities– Undoing current social inequities– Addressing health system factors
• Including Minority representation in practice and research– Addressing provider practices
• Inequities in care• Non-action and accumulation of risk• Clinical practice standards• Timing of intervention
– Improving health education for women• Improving the conditions under which woman can practice
healthy behaviors– Improving relevance and quality of research
• Developing an evidence base• Adopting authentic Community partnered processes for
planning research and interventions
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Adverse Environmental conditions
Social policy
Poverty
Racism
Limited Access to Care
Under-Education
Family Support
Lack of access to good Nutrition
Weathering
Stress
Smoking
Poor Working Conditions
Bad Housing
Bad NeighborhoodsUnemployment
Hopelessness
Disparities
Adapted from A. R. James
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Contact
Vijaya K. Hogan, MPH, DrPH
Department of Maternal and Child Health
University of N Carolina at Chapel Hill