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A health system, also sometimes referred to as health care system or healthcare system is the organization of people, institutions, and resources to deliver health care services to meet the health needs of target populations.

There is a wide variety of health systems around the world, with as many histories and organizational structures as there are nations. In some countries, health system planning is distributed among market participants. In others, there is a concerted effort among governments, trade unions, charities, religious, or other co-ordinated bodies to deliver planned health care services targeted to the populations they serve. However, health care planning has been described as often evolutionary rather than revolutionary.[1][2]

Goals

The goals for health systems, according to the

continuity of health care is a major goal.[5]

Definitions

Often health system has been defined with a reductionist perspective, for example reducing it to health care system. In many publications, for example, both expressions are used interchangeably. Some authors[6] have developed arguments to expand the concept of health systems, indicating additional dimensions that should be considered:

  • Health systems should not be expressed in terms of their components only, but also of their interrelationships;
  • Health systems should include not only the institutional or supply side of the health system, but also the population;
  • Health systems must be seen in terms of their goals, which include not only health improvement, but also equity, responsiveness to legitimate expectations, respect of dignity, and fair financing, among others;
  • Health systems must also be defined in terms of their functions, including the direct provision of services, whether they are medical or public health services, but also "other enabling functions, such as stewardship, financing, and resource generation, including what is probably the most complex of all challenges, the health workforce."[6]

World Health Organization Definition

The World Health Organization defines health system as follows:

"A health system consists of all organizations, people and actions whose primary intent is to promote, restore or maintain health. This includes efforts to influence determinants of health as well as more direct health-improving activities. A health system is therefore more than the pyramid of publicly owned facilities that deliver personal health services. It includes, for example, a mother caring for a sick child at home; private providers; behaviour change programmes; vector-control campaigns; health insurance organizations; occupational health and safety legislation. It includes inter-sectoral action by health staff, for example, encouraging the ministry of education to promote female education, a well known determinant of better health."[7]

Providers

Health care providers are institutions or individuals providing health care services. Individuals including health professionals and

, traditional medicine practitioners, and others.

Financial resources

Norfolk and Norwich University Hospital, a National Health Service hospital in the United Kingdom.

There are generally five primary methods of funding health systems:[8]

  1. general
    taxation
    to the state, county or municipality
  2. social health insurance
  3. voluntary or private health insurance
  4. out-of-pocket payments
  5. charities

Most countries' systems feature a mix of all five models. One study [9] based on data from the OECD concluded that all types of health care finance "are compatible with" an efficient health system. The study also found no relationship between financing and cost control.

The term

long-term nursing or custodial care needs. It may be provided through a social insurance
program, or from private insurance companies. It may be obtained on a group basis (e.g., by a firm to cover its employees) or purchased by individual consumers. In each case premiums or taxes protect the insured from high or unexpected health care expenses.

By estimating the overall cost of health care expenses, a routine finance structure (such as a monthly premium or annual tax) can be developed, ensuring that money is available to pay for the health care benefits specified in the insurance agreement. The benefit is typically administered by a government agency, a non-profit health fund or a corporation operating seeking to make a profit.[10]

Many forms of commercial health insurance control their costs by restricting the benefits that are paid by through

coinsurance
, policy exclusions, and total coverage limits and will severely restrict or refuse coverage of pre-existing conditions. Many government schemes also have co-payment schemes but exclusions are rare because of political pressure. The larger insurance schemes may also negotiate fees with providers.

Many forms of social insurance schemes control their costs by using the bargaining power of their community they represent to control costs in the health care delivery system. For example by negotiating drug prices directly with pharmaceutical companies, or negotiating standard fees with the medical profession. Social schemes sometimes feature contributions related to earnings as part of a scheme to deliver universal health care, which may or may not also involve the use of commercial and non-commercial insurers. Essentially the more wealthy pay proportionately more into the scheme to cover the needs of the relatively poor who therefore contribute proportionately less. There are usually caps on the contributions of the wealthy and minimum payments that must be made by the insured (often in the form of a minimum contribution, similar to a deductible in commercial insurance models).

In addition to these traditional health care financing methods, some lower income countries and development partners are also implementing non-traditional or

UNITAID had collected more than one billion dollars from 29 member countries, including several from Africa, through an air ticket solidarity levy to expand access to care and treatment for HIV/AIDS, tuberculosis and malaria in 94 countries.[12]

Payment models

In most countries, wage costs for health care practitioners are estimated to represent between 65% and 80% of renewable health system expenditures.[13][14] There are three ways to pay medical practitioners: fee for service, capitation, and salary. There has been growing interest in blending elements of these systems.[15]

Fee-for-service

Fee-for-service arrangements pay general practitioners (GPs) based on the service.[15] They are even more widely used for specialists working in ambulatory care.[15]

There are two ways to set fee levels:[15]

  • By individual practitioners.
  • Central negotiations (as in Japan, Germany, Canada and in France) or hybrid model (such as in Australia, France's sector 2, and New Zealand) where GPs can charge extra fees on top of standardized patient reimbursement rates.

Capitation

In capitation payment systems, GPs are paid for each patient on their "list", usually with adjustments for factors such as age and gender.[15] According to OECD, "these systems are used in Italy (with some fees), in all four countries of the United Kingdom (with some fees and allowances for specific services), Austria (with fees for specific services), Denmark (one third of income with remainder fee for service), Ireland (since 1989), the Netherlands (fee-for-service for privately insured patients and public employees) and Sweden (from 1994). Capitation payments have become more frequent in “managed care” environments in the United States."[15]

According to OECD, "Capitation systems allow funders to control the overall level of primary health expenditures, and the allocation of funding among GPs is determined by patient registrations. However, under this approach, GPs may register too many patients and under-serve them, select the better risks and refer on patients who could have been treated by the GP directly. Freedom of consumer choice over doctors, coupled with the principle of "money following the patient" may moderate some of these risks. Aside from selection, these problems are likely to be less marked than under salary-type arrangements."[15]

Salary arrangements

In several OECD countries, general practitioners (GPs) are employed on salaries for the government.[15] According to OECD, "Salary arrangements allow funders to control primary care costs directly; however, they may lead to under-provision of services (to ease workloads), excessive referrals to secondary providers and lack of attention to the preferences of patients."[15] There has been movement away from this system.[15]

Information resources

Sound information plays an increasingly critical role in the delivery of modern health care and efficiency of health systems. Health informatics - the intersection of

.

The use of health information lies at the root of evidence-based policy and evidence-based management in health care. Increasingly, information and communication technologies are being utilised to improve health systems in developing countries through: the standardisation of health information; computer-aided diagnosis and treatment monitoring; informing population groups on health and treatment.[16]

Management

The management of any health system is typically directed through a set of

health human resources, and public health
.

Public health is concerned with threats to the overall health of a community based on

occupational health
are also important subfields.

A child being immunized against polio.

Today, most governments recognize the importance of public health programs in reducing the incidence of disease, disability, the effects of ageing and health inequities, although public health generally receives significantly less government funding compared with medicine. For example, most countries have a vaccination policy, supporting public health programs in providing vaccinations to promote health. Vaccinations are voluntary in some countries and mandatory in some countries. Some governments pay all or part of the costs for vaccines in a national vaccination schedule.

The rapid emergence of many

chronic diseases, which require costly long-term care and treatment, is making many health managers and policy makers re-examine their health care delivery practices. An important health issue facing the world currently is HIV/AIDS.[17] Another major public health concern is diabetes.[18] In 2006, according to the World Health Organization, at least 171 million people worldwide suffered from diabetes. Its incidence is increasing rapidly, and it is estimated that by the year 2030, this number will double. A controversial aspect of public health is the control of tobacco smoking, linked to cancer and other chronic illnesses.[19]

Antibiotic resistance is another major concern, leading to the reemergence of diseases such as tuberculosis. The World Health Organization, for its World Health Day 2011 campaign, is calling for intensified global commitment to safeguard antibiotics and other antimicrobial
medicines for future generations.

Health systems performance

Since 2000, more and more initiatives have been taken at the international and national levels in order to strengthen national health systems as the core components of the global health system. Having this scope in mind, it is essential to have a clear, and unrestricted, vision of national health systems that might generate further progresses in global health. The elaboration and the selection of performance indicators are indeed both highly dependent on the conceptual framework adopted for the evaluation of the health systems performances.[20] Like most social systems, health systems are complex adaptive systems where change does not necessarily follow rigid epidemiological models. In complex systems path dependency, emergent properties and other non-linear patterns are under-explored and unmeasured,[21] which can lead to the development of inappropriate guidelines for developing responsive health systems.[22]

An increasing number of tools and guidelines are being published by international agencies and development partners to assist health system decision-makers to monitor and assess health systems strengthening

human resources development[24] using standard definitions, indicators and measures. In response to a series of papers published in 2012 by members of the World Health Organization's Task Force on Developing Health Systems Guidance, researchers from the Future Health Systems consortium argue that there is insufficient focus on the 'policy implementation gap'. Recognizing the diversity of stakeholders and complexity of health systems is crucial to ensure that evidence-based guidelines are tested with requisite humility and without a rigid adherence to models dominated by a limited number of disciplines.[22][25]

Health Policy and Systems Research (HPSR) is an emerging multidisciplinary field that challenges 'disciplinary capture' by dominant health research traditions, arguing that these traditions generate premature and inappropriately narrow definitions that impede rather than enhance health systems strengthening.[26] HPSR focuses on low- and middle-income countries and draws on the relativist social science paradigm which recognises that all phenomena are constructed through human behaviour and interpretation. In using this approach, HPSR offers insight in to health systems by generating a complex understanding of context in order to enhance health policy learning.[27] HPSR calls for greater involvement of local actors, including policy makers, civil society and researchers, in decisions that are made around funding health policy research and health systems strengthening.[28]

International comparisons

Health systems can vary substantially from country to country, and in the last few years, comparisons have been made on an international basis. The

ranking of health systems around the world according to criteria of the overall level and distribution of health in the populations, and the responsiveness and fair financing of health care services.[3] The goals for health systems, according to the WHO's World Health Report 2000 - Health systems: improving performance (WHO, 2000),[29] are good health, responsiveness to the expectations of the population, and fair financial contribution. There have been several debates around the results of this WHO exercise,[30] and especially based on the country ranking linked to it,[31] insofar as it appeared to depend mostly on the choice of the retained indicators
.

Direct comparisons of health statistics across nations are complex. The

Euro health consumer index
and specific areas of health care such as diabetes
[36] or hepatites[37].


Health System Comparisons

Country Life expectancy Infant mortality rate[38] Mortality amenable to health care (per 100 000 people in 2007)[39] Physicians per 1000 people
Nurses
per 1000 people
Per capita expenditure on health (USD PPP) Healthcare costs as a percent of GDP % of government revenue spent on health % of health costs paid by government
Australia 81.4 4.2 57 2.8 10.1 3,353 8.5 17.7 67.5
Canada
81.4 5.2 77[40] 2.2 9.0 3,844 10.0 16.7 70.2
France 81.0 3.5 55 3.3 7.7 3,679 11.0 14.2 78.3
Germany
79.8 3.7 76 3.5 10.5 3,724 10.4 17.6 76.4
Italy
80.5 3.5 60 4.2 6.1 2,771 8.7 14.1 76.6
Japan
82.6 2.6 61 2.1 9.4 2,750 8.2 16.8 80.4
Norway 80.0 3.0 64 3.8 16.2 4,885 8.9 17.9 84.1
Sweden 81.0 2.5 61 3.6 10.8 3,432 8.9 13.6 81.4
UK
80.1 4.9 83 2.5 9.5 3,051 8.4 15.8 81.3
USA
78.1 6.8 96 2.4 10.6 7,437 16.0 18.5 45.1

Physicians and hospital beds per 1000 inhabitants vs Health Care Spending in 2008 for OECD Countries. The data source is http://www.oecd.org.[34][35]

Physicians per 1000 vs Health Care Spending Hospital beds per 1000 vs Health Care Spending

See also

References

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  2. ^ New Yorker magazine article: "Getting there from here." 26 Jan 2009
  3. ^ a b World Health Organization. (2000). World Health Report 2000 - Health systems: improving performance. Geneva, WHO http://www.who.int/whr/2000/en/index.html
  4. ^ Remarks by Johns Hopkins University President William Brody: "Health Care '08: What's Promised/What's Possible?" 7 Sept 2007
  5. PMID 10720370
    .
  6. ^ a b Frenk J, The Global Health System : strengthening national health systems as the next step for global progress, Plos Medicine, January 2010, Vol 7, issue 1, 3pp., available at http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797599/
  7. ^ "Everybody's business. Strengthening health systems to improve health outcomes : WHO's framework for action" (Document). WHO. 2007. {{cite document}}: Unknown parameter |url= ignored (help)
  8. ^ "Regional Overview of Social Health Insurance in South-East Asia, World Health Organization. And Overview of Health Care Financing". Retrieved August 18, 2006.
  9. ^ Glied, Sherry A. "Health Care Financing, Efficiency, and Equity." National Bureau of Economic Research, March 2008. Accessed March 20th, 2008.
  10. ^ How Private Insurance Works: A Primer by Gary Claxton, Institution for Health Care Research and Policy, Georgetown University, on behalf of the Henry J. Kaiser Family Foundation
  11. PMID 18316147. Retrieved 26 May 2012. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help
    )
  12. ^ UNITAID. Republic of Guinea Introduces Air Solidarity Levy to Fight AIDS, TB and Malaria. Geneva, 30 June 2011. Accessed 5 July 2011.
  13. ^ Saltman RB, Von Otter C. Implementing Planned Markets in Health Care: Balancing Social and Economic Responsibility. Buckingham: Open University Press 1995.
  14. ^ Kolehamainen-Aiken RL. Decentralization and human resources: implications and impact. Human Resources for Health Development 1997, 2(1):1-14.
  15. ^ a b c d e f g h i j Elizabeth Docteur and Howard Oxley (2003). "Health-Care Systems: Lessons from the Reform Experience" (PDF). OECD. {{cite journal}}: Cite journal requires |journal= (help)
  16. PMID 18343005
    . Retrieved 26 May 2012.
  17. ^ "European Union Public Health Information System - HIV/Aides page". Euphix.org. Retrieved 2011-08-06.
  18. ^ "European Union Public Health Information System - Diabetes page". Euphix.org. Retrieved 2011-08-06.
  19. ^ "European Union Public Health Information System - Smoking Behaviors page". Euphix.org. Retrieved 2011-08-06.
  20. ^ Handler A, Issel M, Turnock B. A conceptual framework to measure performance of the public health system. American Journal of Public Health, 2001, 91(8): 1235-1239.
  21. PMID 21821667. Retrieved 18 May 2012. {{cite journal}}: Check date values in: |date= and |year= / |date= mismatch (help); Unknown parameter |month= ignored (help
    )
  22. ^
    PMID 22448148. Retrieved 18 May 2012.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: unflagged free DOI (link
    )
  23. ^ World Health Organization. Monitoring the building blocks of health systems: a handbook of indicators and their measurement strategies. Geneva, WHO Press, 2010.
  24. ^ Dal Poz MR et al. Handbook on monitoring and evaluation of human resources for health. Geneva, WHO Press, 2009
  25. PMID 17974000. Retrieved 26 May 2012. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)CS1 maint: unflagged free DOI (link
    )
  26. PMID 21857809. Retrieved 22 May 2012.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: unflagged free DOI (link
    )
  27. PMID 21886488. Retrieved 22 May 2012.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: unflagged free DOI (link
    )
  28. PMID 21918641. Retrieved 22 May 2012.{{cite journal}}: CS1 maint: date and year (link) CS1 maint: unflagged free DOI (link
    )
  29. ^ World Health Organization. (2000) World Health Report 2000 - Health systems: improving performance. Geneva, WHO Press.
  30. ^ World Health Organization. Health Systems Performance: Overall Framework. Accessed 15 March 2011.
  31. ^ Navarro V. Assessment of the World Health Report 2000. Lancet 2000; 356: 1598–601
  32. ^ "Mirror, Mirror on the Wall: An International Update on the Comparative Performance of American Health Care". The Commonwealth Fund. May 15, 2007. Retrieved March 7, 2009.
  33. Organisation for Economic Co-operation and Development. "OECD Health Data 2008: How Does Canada Compare"
    (PDF). Retrieved 2009-01-09.
  34. ^ a b "Updated statistics from a 2009 report". Oecd.org. Retrieved 2011-08-06.
  35. ^ a b "OECD Health Data 2009 - Frequently Requested Data". Oecd.org. Retrieved 2011-08-06.
  36. ^ "The Euro Consumer Diabetes Index 2008". Health Consumer Powerhouse. Retrieved 29 April 2013.
  37. ^ "Euro Hepatitis Care Index 2012". Health Consumer Powerhouse. Retrieved 29 April 2013.
  38. ^ United Nations World Population Prospects: 2011 revision - 2011 revision
  39. ^ Nolte, Ellen. "Variations in Amenable Mortality—Trends in 16 High-Income Nations". Commonwealth Fund. Retrieved 10 February 2012.
  40. ^ data for 2003
    Nolte, Ellen. "Measuring the Health of Nations: Updating an Earlier Analysis". Commonwealth Fund. Retrieved 8 January 2012.

External links

Category:Public health Category:Health fields Category:Health care Category:Health economics Category:Health policy