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Health care, or healthcare, is the improvement of health via the prevention, diagnosis, treatment, amelioration or cure of disease, illness, injury, and other physical and mental impairments in people. Health care is delivered by health professionals and allied health fields. Medicine, dentistry, pharmacy, midwifery, nursing, optometry ...
Aggregate US hospital costs were $387.3 billion in 2011—a 63% increase since 1997 (inflation adjusted). Costs per stay increased 47% since 1997, averaging $10,000 in 2011 (equivalent to $13,544 in 2023 [ 31] ). [ 128] As of 2008, public spending accounts for between 45% and 56% of US healthcare spending. [ 129]
Health system. A health system, health care system or healthcare system is an organization of people, institutions, and resources that delivers 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.
Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional wellbeing, especially that associated with normal functioning of the human body, absent of disease, pain (including mental pain ), or injury . Health can be promoted by encouraging healthful activities ...
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals". [ 1][ 2] Analyzing the determinants of health of a population and the threats it faces is the basis for public health. [ 3]
Health care quality is a level of value provided by any health care resource, as determined by some measurement. [ 1] As with quality in other fields, it is an assessment of whether something is good enough and whether it is suitable for its purpose. The goal of health care is to provide medical resources of high quality to all who need them ...
Primary health care. Primary health care ( PHC) is a whole-of-society approach to effectively organise and strengthen national health systems to bring services for health and wellbeing closer to communities. [ 1] Primary health care enables health systems to support a person’s health needs – from health promotion to disease prevention ...
Universal health care. Universal health care (also called universal health coverage, universal coverage, or universal care) is a health care system in which all residents of a particular country or region are assured access to health care. It is generally organized around providing either all residents or only those who cannot afford on their ...