Health information technology

Health information technology (HIT) is “the application of information processing involving both computer hardware and software that deals with the storage, retrieval, sharing, and use of health care information, data, and knowledge for communication and decision making” (Brailer, & Thompson, 2004). Technology is a broad concept that

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Health care in the United States

Health care in the United States is provided by many distinct organizations. Health care facilities are largely owned and operated by private sector businesses. Health insurance for public sector employees is primarily provided by the government. 60-65% of healthcare provision and spending comes from programs such as Medicare, Medicaid, TRICARE, the Children's Health Insurance Program, and the Veterans Health Administration. Most of the population under 65 is insured by their or a family member's employer, some buy health insurance on their own, and the remainder are uninsured.
Of 17 high-income countries studied by the National Institutes of Health in 2013, the United States had the highest or near-highest prevalence of infant mortality, heart and lung disease, sexually transmitted infections, adolescent pregnancies, injuries, homicides, and disability. Together, such issues place the U.S. at the bottom of the list for life expectancy. On average, a U.S. male can be expected to live almost four fewer years than those in the top-ranked country.^[1]
According to the World Health Organization (WHO), the United States spent more on health care per capita ($8,608), and more on health care as percentage of its GDP (17.9%), than any other nation in 2011. The Commonwealth Fund ranked the United States last in the quality of health care among similar countries, and notes U.S. care costs the most.
The U.S. Census Bureau reported that 49.9 million residents, 16.3% of the population, were uninsured in 2010 (up from 49.0 million residents, 16.1% of the population, in 2009). A 2004 Institute of Medicine (IOM) report said: "The United States is among the few industrialized nations in the world that does not guarantee access to health care for its population." A 2004 OECD report said: "With the exception of Mexico, Turkey, and the United States, all OECD countries had achieved universal or near-universal (at least 98.4% insured) coverage of their populations by 1990." A 2010 report observed that lack of health insurance causes roughly 48,000 unnecessary deaths every year in the United States.^[2] In 2007, 62.1% of filers for bankruptcies claimed high medical expenses. A 2013 study found that about 25% of all senior citizens declare bankruptcy due to medical expenses, and 43% are forced to mortgage or sell their primary residence.^[3]

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Health care in the United States

Health care in the United States is provided by many distinct organizations. Health care facilities are largely owned and operated by private sector businesses. Health insurance for public sector employees is primarily provided by the government. 60-65% of healthcare provision and spending comes from programs such as Medicare, Medicaid, TRICARE, the Children's Health Insurance Program, and the Veterans Health Administration. Most of the population under 65 is insured by their or a family member's employer, some buy health insurance on their own, and the remainder are uninsured.

Of 17 high-income countries studied by the National Institutes of Health in 2013, the United States was at or near the bottom ininfant mortality, heart and lung disease, sexually transmitted infections, adolescent pregnancies, injuries, homicides, and rates of disability. Together, such issues place the U.S. at the bottom of the list for life expectancy. On average, a U.S. male can be expected to live almost four fewer years than those in the top-ranked country.

According to the World Health Organization (WHO), the United States spent more on health care per capita ($7,146), and more on health care as percentage of its GDP (15.2%), than any other nation in 2008. The Commonwealth Fund ranked the United States last in the quality of health care among similar countries, and notes U.S. care costs the most.

The U.S. Census Bureau reported that 49.9 million residents, 16.3% of the population, were uninsured in 2010 (up from 49.0 million residents, 16.1% of the population, in 2009). A 2004 Institute of Medicine (IOM) report said: "The United States is among the few industrialized nations in the world that does not guarantee access to health care for its population." A 2004 OECD report said: "With the exception of Mexico, Turkey, and the United States, all OECD countries had achieved universal or near-universal (at least 98.4% insured) coverage of their populations by 1990." A 2010 report observed that lack of health insurance causes roughly 48,000 unnecessary deaths every year in the United States. In 2007, 62.1% of filers for bankruptcies claimed high medical expenses. A 2013 study found that about 25% of all senior citizens declare bankruptcy due to medical expenses, and 43% are forced to mortgage or sell their primary residence.

On March 23, 2010, the Patient Protection and Affordable Care Act (PPACA) became law, providing for major changes in health insurance.

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Health care industry

The health care industry incorporates several sectors that are dedicated to providing health care services and products. As a basic framework for defining the sector, the United Nations' International Standard Industrial Classification categorizes health care as generally consisting of hospital activities, medical and dental practice activities, and "other human health activities". The last class involves activities of, or under the supervision of, nurses, midwives, physiotherapists, scientific or diagnostic laboratories, pathology clinics, residential health facilities, or other allied health professions, e.g. in the field of optometry, hydrotherapy, medical massage, yoga therapy, music therapy, occupational therapy, speech therapy, chiropody, homeopathy, chiropractics, acupuncture, etc.

In addition, according to industry and market classifications, such as the Global Industry Classification Standard and the Industry Classification Benchmark, health care includes many categories of medical equipment, instruments and services as well asbiotechnology, diagnostic laboratories and substances, and drug manufacturing and delivery.

For example, pharmaceuticals and other medical devices are the leading high technology exports of Europe and the United States. The United States dominates the biopharmaceutical field, accounting for three-quarters of the world’s biotechnology revenues.

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Community health

Community health, a field of public health, is a discipline which concerns itself with the study and improvement of the health characteristics of biological communities. While the term community can be broadly defined, community health tends to focus on geographical areas rather than people with shared characteristics. The health characteristics of a community are often examined using geographic information system (GIS) software and public health datasets. Some projects, such as InfoShare or GEOPROJ combine GIS with existing datasets, allowing the general public to examine the characteristics of any given community in participating countries.

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Health care reform

Health care reform is a general rubric used for discussing major health policy creation or changes—for the most part, governmental policy that affects health care delivery in a given place. Health care reform typically attempts to:

• Broaden the population that receives health care coverage through either public sector insurance programs or private sector insurance companies
• Expand the array of health care providers consumers may choose among
• Improve the access to health care specialists
• Improve the quality of health care
• Give more care to citizens
• Decrease the cost of health care

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Home and community care

Many types of health care interventions are delivered outside of health facilities. They include many interventions of public health interest, such as food safety surveillance, distribution of condoms and needle-exchange programmes for the prevention of transmissible diseases.

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Quaternary care

The term quaternary care is also used sometimes as an extension of tertiary care in reference to medicine of advanced levels which are highly specialized and not widely accessed. Experimental medicine and some types of uncommon diagnostic or surgical procedures are considered quaternary care. These services are usually only offered in a limited number of regional or national health care centres. This term is more prevalent in the United Kingdom, but just as applicable in the United States. It can be thought as a hospital where virtually any procedure is available where as there may not be sub-specialist with that training at a given tertiary care hosptial.

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Secondary Health Care

Secondary care is the health care services provided by medical specialists and other health professionals who generally do not have first contact with patients, for example, cardiologists, urologists and dermatologists.

It includes acute care: necessary treatment for a short period of time for a brief but serious illness, injury or other health condition, such as in a hospital emergency department. It also includes skilled attendance during childbirth, intensive care, and medical imaging services.

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Primary Health Care (2)

Primary care involves the widest scope of health care, including all ages of patients, patients of all socioeconomic and geographic origins, patients seeking to maintain optimal health, and patients with all manner of acute and chronic physical, mental and social health issues, including multiple chronic diseases. Consequently, a primary care practitioner must possess a wide breadth of knowledge in many areas. Continuity is a key characteristic of primary care, as patients usually prefer to consult the same practitioner for routine check-ups and preventive care, health education, and every time they require an initial consultation about a new health problem. The International Classification of

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Primary Health Care (1)

Primary care is the term for the health care services which play a role in the local community. It refers to the work of health care professionals who act as a first point of consultation for all patients within the health care system. Such a professional would usually be a primary care physician, such as a general practitioner or family physician, or a non-physician primary care provider, such as a physician assistant or nurse practitioner. Depending on the locality, health system organization, and

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Health care

Health care (or healthcare) is the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in humans. Health care is delivered by practitioners in medicine, chiropractic, dentistry, nursing, pharmacy, allied health, and other care providers. It refers to the work done in providing primary care, secondary care and tertiary care, as well as in public health.

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