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David B Evans a Global
Programme on Evidence for Health Policy, World Health Organization,
1211 Geneva 27, Switzerland, b Evidence and
Information for Policy, World Health Organization
Correspondence
to: D B Evans evansd{at}who.int
Objective:
To improve the evidence base for health
policy by devising a method to measure and monitor the performance of health systems.
What is already known on this topic
What this study adds
Design:
Estimation of the relation between levels of
population health and the inputs used to produce health.
Setting:
191 countries.
Main outcome measure:
Health system efficiency (performance).
Results:
Estimated efficiency varied from nearly fully efficient to nearly fully inefficient. Countries with a history of
civil conflict or high prevalence of HIV and AIDS were less efficient.
Performance increased with health expenditure per capita.
Conclusions:
Increasing the resources for health
systems is critical to improving health in poor countries, but
important gains can be made in most countries by using existing
resources more efficiently.
Evidence on the effectiveness of health system reforms is
scarce
Countries with the best levels of health do not always have efficient
health systems
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