2008年-世界发展银行全球_Environmental_Health_and_Child_Survival___Epidemiology_Economics_Experiences_226页_2mb

Summary of Environmental Health and Child Survival

Core Content

Environmental Health and Child Survival is a comprehensive report that explores the interconnections between environmental health and child survival, focusing on epidemiology, economics, and practical experiences from around the world. The report emphasizes the critical role of environmental health in reducing child mortality and improving child health outcomes, especially in low-income and developing countries. It argues that environmental health interventions are essential for long-term, sustainable improvements in child survival and development.

Main Objectives

• To improve understanding of the links between environmental health risks and malnutrition through literature and research.
• To analyze new data on the environmental health burden of disease, particularly among children under five.
• To highlight how environmental health interventions are implemented in developing countries through various programs and the associated institutional and governance implications.

Key Topics and Findings

Environmental Health and Child Survival

• Environmental health is defined as the impact of environmental risk factors on health outcomes, including those related to water, sanitation, and hygiene (WSH), indoor air pollution (IAP), and malaria.
• Environmental factors significantly contribute to child mortality, with the top causes being diarrheal diseases, acute respiratory infections (ARI), and malaria.
• Over 40% of the global burden of disease attributed to environmental factors falls on children under five, despite representing only about 10% of the world's population.
• Malnutrition is closely linked to environmental health issues and is a major contributor to child mortality.

Environmental Risk Factors

Poor Water, Sanitation, and Hygiene (WSH)

• Over 1.1 billion people lack access to safe drinking water, and 2.6 billion lack adequate sanitation.
• Contaminated water and poor sanitation lead to 5.4 billion cases of diarrhea and 1.6 million deaths annually, mostly among children under five.
• Intestinal worms, which thrive in poor sanitary conditions, infect nearly 90% of children in the developing world and can lead to malnutrition, anemia, and retarded growth.

Indoor Air Pollution (IAP)

• IAP is a significant source of health risks, causing over 1.6 million deaths per year and contributing to 2.7% of the global burden of disease.
• Over half of the world's population, especially in developing countries, uses solid fuels for cooking and heating, leading to indoor air pollution.
• Exposure to indoor air pollution is particularly high among women and children, who spend more time indoors, and is linked to respiratory infections.

Malaria

• Malaria is a major health threat, affecting over 40% of the world's population, mainly in the poorest countries.
• It causes more than 500 million severe illnesses annually, with most cases and deaths concentrated in Sub-Saharan Africa.
• Malaria during pregnancy leads to significant maternal and infant mortality, with nonimmune pregnant women facing up to 60% fetal loss and 10% maternal deaths.

Key Messages

• Environmental health is integral to achieving the Millennium Development Goals (MDGs), especially in reducing child mortality and improving child health and education.
• Malnutrition is not only due to food scarcity but is also heavily influenced by environmental factors such as poor WSH and disease.
• Environmental health interventions are preventive and essential for sustainable child survival and development.
• The economic burden of environmental health risks is substantial, affecting both health outcomes and educational attainment.
• There is a need for multisectoral coordination and improved governance to address environmental health challenges effectively.

Institutional and Policy Implications

• Environmental health programs require strong institutional frameworks and governance structures to ensure their success.
• There is a call for more integrated approaches to child survival, combining health, infrastructure, and environmental strategies.
• The report highlights the importance of addressing environmental health as part of broader child development strategies, rather than in isolation.
• The role of environmental health in the MDGs is often overlooked, and there is a need for more attention and investment in this area.

Economic and Social Impact

• Environmental health risks impose a heavy economic burden, particularly in terms of healthcare costs, lost productivity, and long-term cognitive and educational impacts.
• The economic cost of environmental health risks can be measured in terms of GDP percentage, with significant implications for national budgets and development planning.
• The report includes case studies from Ghana and Pakistan, illustrating the impact of environmental health on child mortality and malnutrition.

Conclusion

This report underscores the importance of environmental health in child survival and development, arguing that it should be a central component of policy and program design. It calls for a broader spectrum of interventions that go beyond the health sector, involving infrastructure and environmental management. The report also highlights the need for improved data collection, better policy integration, and stronger institutional frameworks to effectively address environmental health challenges and their impact on children.

Key Information

• Global Burden of Disease: Over 40% of the global burden of disease from environmental factors affects children under five.
• Malnutrition and Environmental Factors: Malnutrition is influenced by environmental factors such as poor WSH, disease, and indoor air pollution.
• Environmental Health Interventions: These interventions are preventive and can reduce child exposure to disease agents, thereby averting infections.
• MDGs and Environmental Health: Environmental health plays a crucial role in achieving several MDGs, including reducing child mortality, improving maternal health, and promoting education and gender equality.
• Case Studies: Ghana and Pakistan are highlighted as examples of the environmental health burden and its impact on child health and development.
• Policy Recommendations: The report suggests the need for multisectoral coordination, improved governance, and the integration of environmental health into broader development strategies.

Appendices and Supporting Materials

• Appendix A: Technical review of cohort studies linking infectious diseases and nutritional status.
• Appendix B: Review of studies on nutritional status and education.
• Appendix C: New estimates of the burden of disease from WSH.
• Appendix D: Methodology for computing country-level environmental health burden of disease.
• Appendix E: Methodological aspects of assessing environmental health burden of disease.

References and Credits

• The report was prepared by the Environmental Health Anchor Program of the World Bank, led by Anjali Acharya and Mikko K. Paunio, with guidance from Kulsum Ahmed and Laura Tlaiye.
• Special thanks to peer reviewers and contributors, including experts from the World Health Organization and other institutions.
• The World Bank-Netherlands Partnership Program provided support for the preparation of this report.