Notes
Slide Show
Outline
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Poverty & TB: Global Overview and Kenyan case study
  • Christy Hanson, PhD, MPH
  • PATH


  • May 30, 2005
  • CCIH Annual Conference



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Global TB Control: TB facts
  • TB is infectious, curable disease
  • 8.8 million new cases of TB in 2003
  • TB is the primary cause of death for PLWHA in Africa
  • Highly cost-effective treatment strategy
  • Only half of new cases were detected in 2003
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Africa: HIV driving the TB epidemic
TB notification rates, 1980-2003
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TB and HIV in Kenya
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Global Targets for TB control
  • 70% case detection


  • 85% treatment success
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TB can be cured: DOTS strategy
  • Political commitment
  • Standardized treatment regimen
    • Available free of charge to patients in public sector
  • Diagnosis by smear microscopy
  • Directly-observed treatment (DOT)
  • Standardized recording and reporting
    • Quality control
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DOTS Works
  • China
    • DOTS areas: 44% decrease in TB prevalence (1990-2000)
    • Non-DOTS areas: 12% decrease in TB prevalence
  • Global level
    • DOTS areas: treatment success rates average 80%
    • Non-DOTS areas: around 50%
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Evolution of DOTS
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Challenges for the future of TB control
  • Dual epidemic of TB/HIV
  • Low case detection rates
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Poverty:
Inequity between countries
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Distribution of Poverty
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Causes of Poor-Rich Health Status Gap
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Disproportionate disease burden among the poor*


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22 Highest TB burden countries
  • None are high-income countries
  • 78% have GNP per capita of less than $760 (low income)
  • Estimate: over 50% new TB patients without access to DOTS are living on less than $2 per day
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Korea case study
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Poverty:
Inequity within countries
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TB prevalence among poor and non-poor, Philippines
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TB in the homeless
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Poverty:
Individual level
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TB Epidemiology
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Income poverty and TB
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Poverty links to TB exposure, infection and disease
  • Overcrowding
  • Malnutrition
    • TB anemia, low retinol & zinc, wasting
    • Vit D deficiency 10x risk of TB disease
  • Gender differentials
    • Higher prevalence among men
    • Women:faster breakdown to TB disease (2x)
  • Marginalized populations
    • Ethnicity
    • Prisoners
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TB case rates by SES indicator: United States 1987-1993
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Poverty & TB disease outcome
  • Impoverishing effects of TB
    • Economic: 20-30% of household wages
    • Social: stigma
    • Women fear social impoverishment, men fear economic
  • Delayed treatment seeking
  • Worse outcomes?
    • Barriers to access
    • Inhibited continuity
    • In absence of treatment, 50% will die


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Reasons for treatment delay: China
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Global Response to Health Inequities
  • Millennium Development Goals
    • Halve the prevalence of TB disease and deaths between 1990 and 2015
  • Poverty-Reduction Strategy Papers
    • Re-orienting development agenda toward pro-poor approaches
    • Debt-relief, increased funds for social sectors
  • Global Fund for AIDS, TB and malaria
    • 4 rounds of applications funded
      • over $8 billion approved
    • $1 billion for TB (13%)
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Financing public health: caring for the poor?
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Financial subsidy from Government health services to poorest & richest 20%
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Expenditures on TB care by level of wealth
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Mounting a response
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TB community response to TB and poverty
  • DOTS expansion and adaptation
  • Global TB Drug Facility
  • Stop TB Partnership
    • Collaboration with NGOs, partners
    • Social and resource mobilization
      • 2002 Theme: TB and poverty
  • Research
    • Benefit - incidence
    • Evaluating what works
    • Understanding what matters to the poor (demand)
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Addressing barriers to care: Examples
  • Cambodia: food incentives for all TB patients
  • Uganda: community-based care
  • China: increased financing for TB control in poorest areas
  • Kenya: mobile treatment facilities for migrant populations
  • Mauritania: salary supplements for health workers in poor, rural areas
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Kenyan Case Study
  • Is the health system responding to poverty dimension of TB?
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Evidence of link: TB incidence and poverty
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Evidence of link: TB incidence and poverty
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Wealth of TB patients & poverty in their provinces
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Conclusions & Next steps
  • TB patients actively seeking care
  • Poor disproportionately represented at all stages
    • Research: prevalence distribution by wealth
    • Social science research: why?
  • Private sector: competitive, well used
    • Cost & geographic access similar
  • District variance: lessons to be learned from successful districts
  • Modeling of system and district-level determinants impacting case detection
  • New initiatives: test strategies to reach the poor
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Conclusions
  • TB disproportionately affects the poorest countries & poorest populations
  • TB has impoverishing effects on individuals and households
  • TB can be cured
  • DOTS is cost-effective and adaptable to become pro-poor
  • Equity approach to the expansion of DOTS needed
    • Attain global targets
    • Serve local populations
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Voices of the poor: Can anyone hear us?
  • “The authorities don’t seem to see poor people. Everything about the poor is despised, and above all, poverty is despised.”
  • - Brazil, 1995