Health inequalities, social determinants, and surveillance...Social Epidemiology “The branch of...
Transcript of Health inequalities, social determinants, and surveillance...Social Epidemiology “The branch of...
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Health inequalities, social determinants, and surveillance
Ross C. BrownsonSaint Louis University School of Public Health
5th International Conference on Behavioral Risk Factor Surveillance
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“Our future survival is predicated upon our ability to relate within
equality”
--A. Lorde
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Session Questions1. What are inequalities and social determinants
in public health?2. Why do they matter? 3. What are the challenges in addressing these
issues?4. What is being covered or should be covered in
surveillance systems?5. What does the future hold regarding
surveillance for these issues?
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What are social determinants of health?
Social determinants of health are the economic and social conditions that influence the health of individuals, communities, and jurisdictions as a whole
Social determinants of health are about the quantity and quality of a variety of resources that a society makes available to its members
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The Solid Facts – 2004WHO Europe
The social gradientStressEarly lifeSocial exclusion / povertyWork
UnemploymentSocial supportAddictionFoodTransportGender
http://www.who.dk/document/e81384.pdf solid facts
Across the life course
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Underpinnings of Social Determinants of Health
Population focus – healthy public policies
Upstream from individual risk factors
Achieving full capacity for health and well-being and not just access to health care
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Social Epidemiology“The branch of epidemiology that studies the social distribution and social determinants of states of health”*
- treating factors like income inequality as independent risk factors, not confounders- much of work to date with archival data, using broad indicators- need to move beyond education, occupation, income
*Berkman and Kawachi
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Social Change & Movements
Collective action for societal changeOften changing political structures via protest– civil rights– feminist movement– peace movement
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As early as 1870, in Public Parks and the Enlargement of Towns
Urban & park planner Fredrick Law Olmsted identified the strong link between good public health and community design
Importance of exercise and access to fresh air and sunlight
Social Causes: Built Environment
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Social Causes: War
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The WHO Commission on SDH
Established in 2005
“Action on the Social Determinants of Health: lessons form previous experiences”http://www.who.int/social_determinants/resources/action_sd.pdf
The concept of surveillance is not explicitly mentioned
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Challenges for Surveillance
1. Do we adequately understand the social causes/evidence base?
2. Should we measure the causes vs. readiness for a social movement?
3. Does any of this lead to effective interventions and improvement in population health?
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For surveillance, understanding causes
Social class– Low social class consistently linked with low
health status across countriesEvidence-based approaches– Growing evidence for sociocultural interventions
• Housing and health• Improvements to the built environment
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Possible Interventions for Health Enhancing Social Environments
1 Adequate public investment in education
2 “Living wages” to move working families above poverty
3 Access to quality health care for all ages
4 Mixed income housing to decrease segregation by socioeconomic status
5 Programs to reintegrate stigmatized populations
6 Adequate health benefits with employment
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Example:
From research literature:What are effective interventions in the social and physical environments to
improve health?
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The spatial concentration of poverty has been shown to have an adverse effect on a range life experiences, from isolating families from employment opportunities to limiting youth to inferior education, dangerous neighborhood conditions, and harmful environmental conditions.
Example: Housing and health (from US Community Guide)
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Family housing interventions
Provide affordable housing
Decrease residential segregation by socioeconomic status
• deconcentration interventions: mixed-income housing developments
• dispersion interventions: tenant-based rental vouchers
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Key Findings:Intentional injuries, victimization, and
neighborhood safety
Effect measure Median
Household member victimized by crime against person or property
(6 studies)
6% decrease
Neighborhood social disorder(6 studies)
16% decrease
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For surveillance, what to measure
Some existing data exist
Social determinants indicators can be useful
Identifying causal agents vs. confounders
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Confounding
X Y
Z
1. Z associated with X;2. Z associated with Y; and3. Z not an intermediate step between X and Y
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SES in the Causal Pathway
EthnicityHealth
OutcomesSES
Adjusting for SES would attenuateor eliminate the association between ethnicity and health
- fallacy in equating race/ethnicity with biology- trying to understand if ethnicity shows
independent effect
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The picture may be simple, but more often, very complex
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Life Expectancy vs. Health Care SpendingLi
fe E
xpec
tanc
y
30
40
50
60
70
80
90
0 500 1000 2000 3000 4000 50001500 2500 3500 4500
Per Capita Health Care Spending in International Dollars
Sierra Leone
United States
Japan
Cuba Switzerland
http://ucatlas.ucsc.edu/spend.php
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What do various systems cover?
US BRFSS– Optional modules with questions such as
• Do you own or rent your home?• In the past 30 days, have you been concerned about having
enough food for you or your family?• Within the past 12 months at work, do you feel you were
treated worse than, the same as, or better than people of other races?
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What do various systems cover?
Data Set Directory of Social Determinants of Health at the Local Level– Covers 12 dimensions including
• Economy– Median per capita income
• Housing– Percent of housing units vacant
• Public Health– Local government expenditures on health
• Transport– No. of automobiles per household
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What do various systems cover?
WHO Health for All database– Range of indicators covering
• Demographic and socioeconomic factors– Unemployment rate– Ave. population density
• Environmental– % of population with access to sewer system
• Health care utilization– Total health expenditures per person
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Unemployment rate in Selected EU countries
02468
101214161820
Albania Belgium Croatia France Italy Norway
Une
mpl
oym
ent r
ate
(%)
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Public policy should focus on the unequal distribution of high risk social conditionsthat shape population health
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The FutureContinue to develop the evidence base on social determinants and interventions– Cannot wait for all questions to be answered
Further refine issues for surveillance– Archival vs. new items
Foster international collaboration– Testing of new measures– Building the evidence base– Global surveillance
We do not know all of what should be measured– But we do know “what gets measured, gets done!”
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