Exam Review Flashcards
(163 cards)
What is the WHO definition of health?
After World War II, WHO created a definition for health that emphasized the aspects of health which are not only related to disease status. The definition is:
Health as a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.
What is the functional definition of health?
The functional approach to defining health looks at what our health state allows us to do or not to do. The definition is:
Health is the capacity of people to adapt to, respond to, or control life’s challenges and changes.
Define disease, illness, and sickness. Discuss the relationship between these terms.
Disease -  refers to a biological or physical malady affecting the body.
Illness - Refers to the perception of dysfunction by the afflicted individual.
Sickness - refers to the social acknowledgement of impairment or affliction.
Similar to the relationship between health and disease, the relationships between disease, illness, and sickness or not unidirectional. There can be disease without illness where increased blood pressure causes a heart attack or stroke when the person does not feel ill (hypertension). There can be illness without disease when the person feels ill but doctors cannot find anything wrong despite extensive testing (hypochondriac). Lastly there can be illness without sickness where the person feels ill but that feeling is not acknowledged by others (headache).
Discuss the relationships between disease and health.
It is important to understand that there is a relationship between disease and health that must be properly considered. This is because someone can have a disease and be healthy (well-managed diabetic), have a disease and be unhealthy (late stage cancer), have no disease but be unhealthy (cannot sleep or eat well due to stress), or have no disease and be healthy.
What is the main idea of the germ theory and who are the three key individuals involved in it?
The main idea of germ theory is that infections can come from germs so there must be sterilization methods for preventative measures.
Koch - Believed germs are present in those with disease and are absent in those without, germs can be isolated and cultured from those with disease, germs cause disease when introduced into a healthy host, and germs can be re-isolated from the newly diseased host.
Ignored the social context and potential genetic origins of many diseases.
Lister - Believed sepsis (infection) may be caused by pollen-like dust contaminating surgical wounds, anti-septic conditions like the application of carbolic acid should be used to prevent wound infections.
Caused surgical mortality to fall from 45% to 15% after intervention.
Pasteur - first postulated the germ theory of disease, discovered principles of microbial fermentation and sterilization, and described heat treatment methods for milk and wine (pasteurization).
What are the genetic and lifestyle theories of disease?
Genetic - Linked to advantages in biology, shifting responsibility for disease to interplay between genetics and the environment. Genetic theories emphasize hereditary vulnerability and focus on the individual, rather than society.
Lifestyle- Behaviourally-driven by things like smoking, consuming alcohol, and eating fatty foods. Lifestyle theories emphasize individual behaviour change as the route to good health.
What is multifactorial disease causation?
Multifactorial disease causation includes epigenetic‘s and environmental triggers. Epigenetics cover the idea of having a specific gene that raises your risk for disease. It is not completely deterministic. Environmental triggers are what cause the epigenetics but sometimes are not necessarily sufficient enough to cause disease.
Explain wellness and well-being.
Wellness - The state of feeling well, not ill or sick.
Well-being - A broad concept that encompasses other areas of our lived experience. Examples include learning, financial security, social participation, work, leisure, housing, health, security, environment, and family life.
What is a population? What is population health?
Populations are groups of individuals with a shared characteristic. They can be geographically or politically defined, but do not need to be.
Population health considers the health outcome of a group of individuals, including the distribution of such outcomes within the group. The field of population health includes health outcomes, patterns of health determinants, and policies and interventions that link these two. The public health agency of Canada defines population health as an approach to health that aims to improve the health of the entire population and to reduce health inequities among population groups. They believe that the population health approach recognizes that health is a capacity or resource rather than a state. It is being able to pursue one’s goals, to acquire skills and education, and to grow.
What is epidemiology?
Epidemiology provides important information to develop, implement, and evaluate approaches to prevent disease and improve quality of life in populations by studying distribution and determinants of disease in those populations.
Distribution - The focus of descriptive epidemiology that looks at how specific health outcomes are dispersed or patterned across a population. This is essential for developing hypotheses about the etiology of disease or other health problems and for planning health services.
Determinants - The focus of analytical epidemiology that looks at anything that influences the state of health in an individual or the distribution of health states in a population.
What are the fundamental assumptions of disease?
1) Diseases do not distribute randomly in populations, but rather distribute in relation to the factors that determine health for the individuals in that population.
2) Factors that determine health status can be identified by studying distributions of health outcomes in populations.
What are determinants of health?
Determinants of health are the range of personal, social, economic, and environmental factors which determine the health status of individuals or populations.
Explain the Dahlgren and Whitehead model of determinants.
The Dahlgren and Whitehead model of the main determinants group factors to reveal over arching layers of influences on health.
Age, sex, and constitutional factors:
The factors closest to an individual are related to personal and biological features. These include age, sex, or genetic make up which can contribute directly to our susceptibility to diseases.
Individual lifestyle factors:
Factors associated with an individuals health practices and behaviours which are important but may not always be associated with an individuals freedom to choose, and can be influenced by larger factors at family, community, or more broad levels. These can include dietary and movement practices.
Social and community networks:
The extent to which people receive social support from peers, family, or other people in their community. Stronger levels of support are associated with better health outcomes. Being able to express one’s culture is also extremely important.
Living and working conditions:
Critical determinants of health which include education systems, work environment, housing, healthcare services, food, water, and sanitation services.
General socieconomic, cultural, and environmental conditions:
More broad conditions that influence health in direct and indirect ways. These include climate change, poverty, or affluence and how that supports it’s larger social and government system.
What are social determinants of health?
Social determinants of health refer to social and economic factors that influence health outcomes. They are the conditions in which people are born, grow, work, live, and age, and the wider set of forces and systems shaping the conditions of daily life. The social determinants of health refer to specific features of social and societal conditions that affect health, and how these can be altered by informed action. These circumstances are shaped by money, power, and resources.
What are physical determinants of health?
Physical determinants of health refer to those factors in the physical environment which affect health risk and outcomes. These include air quality, water quality, soil contamination, occupational hazards, motor vehicle usage, and housing.
What are examples of social and physical determinants of health?
Psychosocial factors - Knowledge, attitudes, belief, and ideas.
Biological factors - Genetic changes.
Environmental factors - Violence and genocide.
Health policy effects - Depending on the policies in place, there may be different accesses to healthcare.
Individual behaviours - Smoking and alcohol usage.
Define root, underlying, and proximal determinants of health.
Root - broad factors in our natural environment, macro environment, and population level inequalities which seem distant to the diseased individuals themselves.
Underlying - factors in the middle of route and proximal causes which are aspects of our built environment and social context which influences health from a medium range.
Proximal - factors that are closer to an individual such as personal health behaviors, or whether a person is exposed to proximal factors like chemicals.
Discuss risk factors of health.
The term risk factor is used when referring to health determinants that have been linked, by evidence, to specific health outcomes such that we can make a statement about level of risk they are associated with.
Intrinsic - Non-modifiable and biological characteristics
Disease-related - existing diseases that act as a risk for other diseases
Behavioural - Personal behaviours or lifestyle choices
Physical environment- exposure to contaminants or a lack of access to services
Social environment - interpersonal relationships and community networks
Some risk factors are more common than others and are associated with a more increased risk of mortality. These include high blood pressure, smoking, air pollution, high blood sugar, and obesity.
As populations experience economic growth, health risks transition from traditional to modern groupings which can be shown on a risk transition graph.
What are health statics indicators?
Health status indicators are a specific way to measure and understand Health status in order to address key global health issues. The use of health status indicators are critical for three distinct reasons:
1) to determine the causes of illness, disability and death
2) to carry out disease surveillance
3) to make comparisons about health within and across countries
These typically include life expectancy at birth, neonatal mortality rate, infant mortality rate, under five mortality rate, and maternal mortality rate.
How is population health measured?
Population health is often measured with vital statistics that collect data about mortality. The most common population health indicator is under five mortality. Although a blunt measure of health, death is an important aspect to consider but does not recognize suffering, disease burden, disability, or morbidity.
Define health disparities/inequalities.
Health disparities refers to a type of difference in health that is closely linked with social or economic disadvantage. Common patterns of health disparities typically emerge within and across populations due to income and variation in health indicators.
Health inequalities involve how resources are shared equally amongst individuals, considering the differences in health that are not only unnecessary and avoidable but are also unfair and unjust.
Define health inequity.
Health inequities are a form of inequality which can be understood as distinct according to the WHO definition which states that health and equities are differences in health status or in the distribution of health resources between different population groups, arising from the social conditions in which people are born, grow, live, work, and age.
What is the difference between health equity and equality?
Equity: fair shares
Equality: equal shares
What is a critical scholar?
A person who challenges aspects of existing structures that others accept without question.