Community Health Health Article

COMMUNITY HEALTH

The term "community health" refers to the health status of a defined group of people, or community, and the actions and conditions that protect and improve the health of the community. Those individuals who make up a community live in a somewhat localized area under the same general regulations, norms, values, and organizations. For example, the health status of the people living in a particular town, and the actions taken to protect and improve the health of these residents, would constitute community health. In the past, most individuals could be identified with a community in either a geographical or an organizational sense. Today, however, with expanding global economies, rapid transportation, and instant communication, communities alone no longer have the resources to control or look after all the needs of their residents or constituents. Thus the term "population health" has emerged. Population health differs from community health only in the scope of people it might address. People who are not organized or have no identity as a group or locality may constitute a population, but not necessarily a community. Women over fifty, adolescents, adults twenty-five to forty-four years of age, seniors living in public housing, prisoners, and blue-collar workers are all examples of populations. As noted in these examples, a population could be a segment of a community, a category of people in several communities of a region, or workers in various industries. The health status of these populations and the actions and conditions needed to protect and improve the health of a population constitute population health.

The actions and conditions that protect and improve community or population health can be organized into three areas: health promotion, health protection, and health services. This breakdown emphasizes the collaborative efforts of various public and private sectors in relation to community health. Figure 1 shows the interaction of the various public and private sectors that constitute the practice of community health.

Health promotion may be defined as any combination of educational and social efforts designed to help people take greater control of and improve their health. Health protection and health services differ from health promotion in the nature or timing of the actions taken. Health protection and services include the implementing of laws, rules, or policies approved in a community as a result of health promotion or legislation. An example of health protection would be a law to restrict the sale of hand guns, while an example of health services would be a policy offering free flu shots for the elderly by a local health department. Both of these actions could be the result of health promotion efforts such as a letter writing campaign or members of a community lobbying their board of health.

FOUNDATIONS OF COMMUNITY HEALTH

The foundations of community health include the history of community health practice, factors that affect community and population health, and the tools of community health practice. These tools include epidemiology, community organizing, and health promotion and disease prevention planning, management, and evaluation.

History of Community Health Practice. In all likelihood, the earliest community health practices went unrecorded. Recorded evidence of concern about health is found as early as 25,000 B.C.E., in Spain, where cave walls included murals of physical deformities. Besides these cave carvings and drawings, the earliest records of community health practice were those of the Chinese, Egyptians, and Babylonians. As early as the twenty-first century B.C.E., the Chinese dug wells for drinking.

Figure 1

Between the eleventh and second centuries B.C.E., records show that the Chinese were concerned about draining rainwater, protecting their drinking water, killing rats, preventing rabies, and building latrines. In addition to these environmental concerns, many writings from 770 B.C.E. to the present mention personal hygiene, lifestyle, and preventive medical practices. Included in these works are statements by Confucius (551–479 B.C.E.) such as "Putrid fish … food with unusual colors… foods with odd tastes … food not well cooked is not to be eaten." Archeological findings from the Nile river region as early as 2000 B.C.E., indicate that the Egyptians also had environment health concerns with rain and waste water. In 1900 B.C.E., Hammurabi, the king of Babylon, prepared his code of conduct that included laws pertaining to physicians and health practices.

During the years of the classical cultures (500 B.C.E.–500 C.E.), there is evidence that the Greeks were interested in men's physical strength and skill, and in the practice of community sanitation. The Romans built upon the Greek's engineering and built aqueducts that could transport water many miles. Remains of these aqueducts still exist. The Romans did little to advance medical thinking, but the hospital did emerge from their culture.

In the Middle Ages (500–1500 C.E.), health problems were considered to have both spiritual causes and spiritual solutions. The failure to account for the role of physical and biological factors led to epidemics of leprosy, the plague, and other communicable diseases. The worst of these, the plague epidemic of the fourteenth century, also known as the Black Death, killed 25 million people in Europe alone. During the Renaissance (1500–1700 C.E.), there was a growing belief that diseases were caused by environmental, not spiritual, factors. It was also a time when observations of the sick provided more accurate descriptions of the symptoms and outcomes of diseases. Yet epidemics were still rampant.

The eighteenth century was characterized by industrial growth, but workplaces were unsafe and living conditions in general were unhealthful. At the end of the century several important events took place. In 1796 Dr. Edward Jenner successfully demonstrated the process of vaccination for smallpox. And, in 1798, in response to the continuing epidemics and other health problems in the United States, the Marine Hospital Service (the forerunner to the U.S. Public Health Service) was formed.

The first half of the nineteenth century saw few advances in community health practice. Poor living conditions and epidemics were still concerns, but better agricultural methods led to improved nutrition. The year 1850 marks the beginning of the modern era of public health in the United States. It was that year that Lemuel Shattuck drew up a health report for the Commonwealth of Massachusetts that outlined the public health needs of the state. This came just prior to the work of Dr. John Snow, who removed the handle of the Broad Street pump drinking well in London, England, in 1854, to abate the cholera epidemic. The second half of the nineteenth century also included the proposal of Louis Pasteur of France in 1859 of the germ theory, and German scientist Robert Koch's work in the last quarter of the century showing that a particular microbe, and no other, causes a particular disease. The period from 1875 to 1900 has come to be known as the bacteriological era of public health.

The twentieth century can be divided into several different periods. The years between 1900 and 1960 are known as the health resources development era. This period is marked by the growth of health care facilities and providers. The early years of the period saw the birth of the first voluntary health agencies: the National Association for the Study and Prevention of Tuberculosis (now the American Lung Association) was founded in 1904 and the American Cancer Society in 1913. The government's major involvement in social issues began with the Social Security Act of 1935. The two world wars accelerated medical discoveries, including the development of penicillin. In 1946, Congress passed the National Hospital Survey and Construction Act (Hill-Burton Act) to improve the distribution and enhance the quality of hospitals.

The social engineering era (1960–1975) included the passage of amendments to the Social Security Act that set up Medicare (payment of medical bills for the elderly and certain people with disabilities) and Medicaid (payment of medical bills for the poor). The final period of the twentieth century is the health promotion era (1974–1999). During this period it was recognized that the greatest potential for improving the health of communities and populations was not through health care but through health promotion and disease prevention programs. To move in this direction, the U.S. government created its "blueprint for health" a set of health goals and objectives for the nation. The first set was published in 1980 and titled Promoting Health/Preventing Disease: Objectives for the Nation. Progress toward the objectives has been assessed on a regular basis, and new goals and objectives created in volumes titled Healthy People 2000, and Healthy People 2010. Other countries, and many states, provinces, and even communities, have developed similar goals and targets to guide community health.

Factors that Affect Community and Population Health. There are four categories of factors that affect the health of a community or population. Because these factors will vary in separate communities, the health status of individual communities will be different. The factors that are included in each category, and an example of each factor, are noted here.

Figure 2

1. Physical factors—geography (parasitic diseases), environment (availability of natural resources), community size (overcrowding), and industrial development (pollution).
2. Social and cultural factors—beliefs, traditions, and prejudices (smoking in public places, availability of ethnic foods, racial disparities), economy (employee health care benefits), politics (government participation), religion (beliefs about medical treatment), social norms (drinking on a college campus), and socioeconomic status (number of people below poverty level).
3. Community organization—available health agencies (local health department, voluntary health agencies), and the ability to organize to problem solve (lobby city council).
4. Individual behavior—personal behavior (health-enhancing behaviors like exercising, getting immunized, and recycling wastes; see Figure 2).

Three Tools of Community Health Practice. Much of the work of community health revolves around three basic tools: epidemiology, community organizing, and health education. Though each of these is discussed in greater length elsewhere in the encyclopedia, they are mentioned here to emphasize their importance to community and population practice. Judith Mausner and Shira Kramer have defined epidemiology as the study of the distribution and determinants of diseases and injuries in human populations. Such data are recorded as number of cases or as rates (number per 1,000 or 100,000). Epidemiological data are to community health workers as biological measurements are to a physician. Epidemiology has sometimes been referred to as population medicine. Herbert Rubin and Irene Rubin have defined community organizing as bringing people together to combat shared problems and increase their say about decisions that affect their lives. For example, communities may organize to help control violence in a neighborhood. Health education involves health promotion and disease prevention (HP/DP) programming, a process by which a variety of interventions are planned, implemented, and evaluated for the purpose of improving or maintaining the health of a community or population. A smoking cessation program for a company's employees, a stress management class for church members, or a community-wide safety belt campaign are examples of HP/DP programming.