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National Center For Health Statistics
The National Center for Health Statistics (NCHS) is a U.S. government agency that provides statistical information to guide actions and policies to improve the public health of the American people. It is a unit of the Centers for Disease Control and Prevention (CDC) and a principal agency of the U.S. Federal Statistical System. It is headquartered at University Town Center in Hyattsville, Maryland, just outside Washington, D.C. History The Marine Hospital Service, predecessor of the Public Health Service (PHS), began collecting data on communicable diseases and performing surveillance of the incidence and distribution of diseases due to an 1878 act of Congress. In 1893, another law provided for weekly collection of data from state and municipal authorities. The Division of Sanitary Reports and Statistics was established in 1899 as part of the initial establishment of internal divisions within the Marine Hospital Service. Separately, the Division of Public Health Methods w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Government Of The United States
The Federal Government of the United States of America (U.S. federal government or U.S. government) is the Federation#Federal governments, national government of the United States. The U.S. federal government is composed of three distinct branches: United States Congress, legislative, President of the United States, executive, and Federal judiciary of the United States, judicial. Powers of these three branches are defined and vested by the Constitution of the United States, U.S. Constitution, which has been in continuous effect since May 4, 1789. The powers and duties of these branches are further defined by Act of Congress, Acts of Congress, including the creation of United States federal executive departments, executive departments and courts subordinate to the Supreme Court of the United States, U.S. Supreme Court. In the Federalism in the United States, federal division of power, the federal government shares sovereignty with each of the 50 states in their respective t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Works Progress Administration
The Works Progress Administration (WPA; from 1935 to 1939, then known as the Work Projects Administration from 1939 to 1943) was an American New Deal agency that employed millions of jobseekers (mostly men who were not formally educated) to carry out public works projects, including the construction of public buildings and roads. It was set up on May 6, 1935, by presidential order, as a key part of the Second New Deal. The WPA's first appropriation in 1935 was $4.9 billion (about $15 per person in the U.S., around 6.7 percent of the 1935 GDP). Headed by Harry Hopkins, the WPA supplied paid jobs to the unemployed during the Great Depression in the United States, while building up the public infrastructure of the US, such as parks, schools, and roads. Most of the jobs were in construction, building more than of streets and over 10,000 bridges, in addition to many airports and much housing. In 1942, the WPA played a key role in both building and staffing Internment of Japanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Health And Nutrition Examination Survey
The National Health and Nutrition Examination Survey (NHANES) is a survey research program conducted by the National Center for Health Statistics (NCHS) to assess the health and nutritional status of adults and children in the United States, and to track changes over time. The survey combines interviews, physical examinations and laboratory tests. The NHANES interview includes demographic, socioeconomic, dietary, and health-related questions. The examination component consists of medical, dental, and physiological measurements, as well as laboratory tests administered by medical personnel. The National Health Survey Act was passed in 1956. This allowed legislative authorization to provide current statistical data on the amount, distribution, and effects on illness and disability in the United States. The first three national health examination surveys were conducted in the 1960s: # 1960-62—National Health Examination Survey I (NHES I); # 1963-65—National Health Examinati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Behavior
Behavior (American English) or behaviour (British English) is the range of actions of Individual, individuals, organisms, systems or Artificial intelligence, artificial entities in some environment. These systems can include other systems or organisms as well as the inanimate physical environment. It is the computed response of the system or organism to various stimuli or inputs, whether internal or external, conscious or subconscious, overt or covert, and voluntary action, voluntary or Volition (psychology), involuntary. While some behavior is produced in response to an organism's environment (extrinsic motivation), behavior can also be the product of intrinsic motivation, also referred to as "agency" or "free will". Taking a behavior informatics perspective, a behavior consists of actor, operation, interactions, and their properties. This can be represented as a behavior Euclidean vector, vector. Models Biology Definition Behavior may be defined as "the internally coordin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immunization
Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent (known as the antigen, immunogen). When this system is exposed to molecules that are foreign to the body, called ''non-self'', it will orchestrate an immune response, and it will also develop the ability to quickly respond to a subsequent encounter because of immunological memory. This is a function of the adaptive immune system. Therefore, by exposing a human, or an animal, to an immunogen in a controlled way, its body can learn to protect itself: this is called active immunization. The most important elements of the immune system that are improved by immunization are the T cells, B cells, and the Antibody, antibodies B cells produce. Memory B cells and memory T cells are responsible for a swift response to a second encounter with a foreign molecule. Passive immunization is direct introduction of these elements into the body, instead of production of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Health Insurance
Health insurance or medical insurance (also known as medical aid in South Africa) is a type of insurance that covers the whole or a part of the risk of a person incurring medical expenses. As with other types of insurance, risk is shared among many individuals. By estimating the overall risk of health risk and health system expenses over the risk pool, an insurer can develop a routine finance structure, such as a monthly premium or payroll tax, to provide the money to pay for the health care benefits specified in the insurance agreement. The benefit is administered by a central organization, such as a government agency, private business, or not-for-profit entity. According to the Health Insurance Association of America, health insurance is defined as "coverage that provides for the payments of benefits as a result of sickness or injury. It includes insurance for losses from accident, medical expense, disability, or accidental death and dismemberment". A health insurance policy i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interview (research)
An interview in qualitative research is a conversation where questions are asked to elicit information. The ''interviewer'' is usually a professional or paid researcher, sometimes trained, who poses questions to the ''interviewee'', in an alternating series of usually brief questions and answers. They can be contrasted with focus groups in which an interviewer questions a group of people and observes the resulting conversation between interviewees, or surveys which are more anonymous and limit respondents to a range of predetermined answer choices. In addition, there are special considerations when interviewing children. In phenomenological or ethnographic research, interviews are used to uncover the meanings of central themes in the life world of the subjects from their own point of view. Characteristics of qualitative research interviews Qualitative research interviews are completed by an interviewer who records what the interviewees say and do. The interviewer is considered a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Health Interview Survey
The National Health Interview Survey (NHIS) is an annual, cross-sectional survey intended to provide nationally representative estimates on a wide range of health status and utilization measures among the nonmilitary, noninstitutionalized population of the United States. Each annual data set can be used to examine the disease burden and access to care that individuals and families are currently experiencing in the United States. NHIS is designed by the CDC's National Center for Health Statistics (NCHS) – the government agency tasked to monitor the population's health status and behavior – and administered by the U.S. Census Bureau. NHIS has been administered since 1957, although the core content and questionnaires undergo major revisions every 10–15 years. NHIS allows both governmental and outside researchers to obtain estimates on a variety of health-related topics among either the entire nation or specific demographic groups of the population. Also, since the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Life Expectancy
Human life expectancy is a statistical measure of the estimate of the average remaining years of life at a given age. The most commonly used measure is ''life expectancy at birth'' (LEB, or in demographic notation ''e''0, where ''e''x denotes the average life remaining at age ''x''). This can be defined in two ways. ''Cohort'' LEB is the mean length of life of a birth Cohort (statistics), cohort (in this case, all individuals born in a given year) and can be computed only for cohorts born so long ago that all their members have died. ''Period'' LEB is the mean length of life of a hypothetical cohort assumed to be exposed, from birth through death, to the mortality rates observed at a given year. National LEB figures reported by national agencies and international organizations for human populations are estimates of ''period'' LEB. Human remains from the early Bronze Age indicate an LEB of 24. In 2019, world LEB was 73.3. A combination of high infant mortality and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cause Of Death
In law, medicine, and statistics, cause of death is an official determination of the conditions resulting in a human's death, which may be recorded on a death certificate. A cause of death is determined by a medical examiner. In rare cases, an autopsy needs to be performed by a pathologist. The cause of death is a specific disease or injury, in contrast to the manner of death, which is a small number of categories like "natural", "accident", "suicide", and "homicide", each with different legal implications. International Classification of Disease (ICD) codes can be used to record manner and cause of death in a systematic way that makes it easy to compile statistics and more feasible to compare events across jurisdictions.National Center for Health Statistics â€Classification of Death and Injury Resulting from Terrorism – How are external cause of injury codes assigned? Centers for Disease Control and Prevention. retrieved July 7 2019 Accuracy concerns A study published i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Risk Factor
In epidemiology, a risk factor or determinant is a variable associated with an increased risk of disease or infection. Due to a lack of harmonization across disciplines, determinant, in its more widely accepted scientific meaning, is often used as a synonym. The main difference lies in the realm of practice: medicine (clinical practice) versus public health. As an example from clinical practice, low ingestion of dietary sources of vitamin C is a known risk factor for developing scurvy. Specific to public health policy, a determinant is a health risk that is general, abstract, related to inequalities, and difficult for an individual to control. For example, poverty is known to be a determinant of an individual's standard of health. Risk factors may be used to identify high-risk people. Correlation vs causation Risk factors or determinants are correlational and not necessarily causal, because correlation does not prove causation. For example, being young cannot be said to caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurisdiction
Jurisdiction (from Latin 'law' and 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple levels (e.g., local, state, and federal). Jurisdiction draws its substance from international law, conflict of laws, constitutional law, and the powers of the executive and legislative branches of government to allocate resources to best serve the needs of society. International dimension Generally, international laws and treaties provide agreements which nations agree to be bound to. Such agreements are not always established or maintained. Extraterritorial jurisdiction is exercised through three principles outlined in the UN charter. These are equality of states, territorial sovereignty and non-intervention. This raises questions of when can many states prescribe or enforce jurisdiction. The ''Lotus'' case establishes two key rules t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
