W1 Flashcards
Morbidity
- illness.
- pt can have co-morbidities
- prevalence is a measure often used to determine the level of morbidity in a population.
- Mortality
2. life Expectancy at birth
- -Deaths.
- A mortality rate is the number of deaths due to a disease divided by the total population. - Life expectancy at birth reflects the overall mortality level of a population.
- It summarizes the mortality pattern that prevails across all age groups in a given year – children and adolescents, adults and the elderly.
Incidence
- a measure of disease that allows us to determine a person’s probability of being diagnosed with a disease during a given period of time.
- is the number of newly diagnosed cases of a disease.
- incidence rate is the number of new cases of a disease divided by the number of persons at risk for the disease.
- acute disease, studies of causation
- If, over the course of one year, five women are diagnosed with breast cancer, out of a total female study population of 200 (who do not have breast cancer at the beginning of the study period), then we would say the incidence of breast cancer in this population was 0.025. (or 2,500 per 100,000 women-years of study)
Prevalence
- a measure of disease that allows us to determine a person’s likelihood of having a disease.
- the number of prevalent cases is the total number of cases of disease existing in a population.
- A prevalence rate is the total number of cases of a disease existing in a population divided by the total population.
- chronic disease & implications
Crude mortality rate
- Mortality rate among all age groups and due to all causes.
- -A mortality rate is the number of deaths due to a disease divided by the total population.
Age-adjusted mortality:
- Mortality rate that takes into account the age structure of the population to which it refers.
- Used to compare mortality in populations with very different age structures
Infant mortality rate: age specific mortality
-# of infants below one year of age dying per 1000 live births in a given year
Describe the five areas for measuring population health
The five Ds
- Death (mortality)
- Disease (morbitity)
- Disability
- Discomfort & 5. Distress (physical & mental components)
- physical function
- role physical
- bodily pain
- general health
- mental health
- role emotional
- social function
- vitality
Health status
-The state of health of a person or population assessed with reference to morbidity, impairments, anthropological measurements, mortality, and indicators of functional status and quality of life
Population health
- the health outcomes of a group of individuals, including the distribution of such outcomes within the group.
- These groups are often geographic populations such as nations or communities, but can also be other groups such as employees, ethnic groups, disabled persons, prisoners, or any other defined group.
- The health outcomes of such groups are of relevance to policy makers in both the public and private sectors.
what is health?
is a state of complete physical, mental, social well-being and not merely the absence of disease or infirmity
Disability-Adjusted Life Years (DALY)
YLL due to premature mortality in population
- DALY is a health gap measure that extends the concept of potential years of life lost (YLL) due to premature death to include equivalent years of ‘healthy’ life lost by virtue of being in states of poor health or disability (YLD).
- DALY combines in one measure the time lived with disability and the time lost due to premature mortality.
- One DALY can be thought of as one lost year of ‘healthy’ life and the burden of disease as a measurement of the gap between current health status and an ideal situation where everyone lives into old age free of disease and disability
To define social determinants of health (SDH)
-“The complex, integrated, and overlapping social structures and economic systems that are responsible for most health inequities. -These social structures and economic systems
include the social environment, physical environment, health services, and structural and societal factors.
-Social determinants of health are shaped by the distribution of money, power, and resources throughout local communities, nations, and the world.”
-“Conditions in which people are born, grow, live, work & age.”
absolute poverty
- basic needs
- poverty in relation to the amount of money necessary to meet basic needs such as food, clothing, and shelter.
- The concept of absolute poverty is not concerned with broader quality of life issues or with the overall level of inequality in society.
- The concept therefore fails to recognise that individuals have important social and cultural needs
relative poverty
- basic needs + quality of life
- poverty in relation to the economic status of other members of the society: people are poor if they fall below prevailing standards of living in a given societal context.
socioeconomic status
-position within social hierarchy, based on prestige and access to resources 1. income & wealth 2. education 3. occupation
social capital
-Resources that can be accessed through membership in networks and other social structures” – Trust – Social organizations/support – Collective action – Diffusion of information
-refers to the institutions, relationships, and norms that shape the quality and quantity of a society’s social interactions.
- increasing evidence shows that social cohesion is critical for societies to prosper economically and for development to be sustainable.
- Social capital is not just the sum of the institutions which underpin a society – it is the glue that holds them together
Maslow’s Hierarchy of Needs
bottom most (foundation) to top
- physiologic (health, food, water, shelter)
- safety (security of body, property)
- belonging
- esteem & respect
- achieving potential
-SDHs (social, physical, economic) can weaken or strengthen foundation of pyramid, impacting stability of the entire hierarchy
what are the importance of SHD (6)
- Impact health of the individual
- Impact health of populations
- Cause/worsen acute conditions
- Cause/worsen chronic diseases
- Gene-environment interactions
- New focus with health reform
deconstructing the 3 main points of SDH
- social environment
- social capital & cohesion - economic environment
- SES & poverty, resources & access - physical environemnt
- common spaces, parks, exercise centers
- pollution
- housing quality
Discrimination & race
-four areas of racial disparities
base on race
-institutional:affects access to quality resources, education,health care
– Personally-mediated: differential assumptions and stereotypes
– Internalized: stigmatization of one’s own abilities and worth
racial Disparities:
- housing
- education & labor market
- criminal justice
- health care
Poverty impact resources in community
-what is food security refers to?
availability & access to healthy nutrition
- resource availability
- access to care, common space
- adverse environmental exposures
- housing quality & asthma
SDH strongly associated with:
- Injury
- Malnutrition/Obesity
- Infectious diseases
- Preterm birth
- Lead poisoning
- Behavioral/developmental
- Diabetes
- Substance abuse
- Wound healing
- Asthma/resp. illness
ID roles physicians have in assisting pts with chronic illnesses
- Talk to your health care provider about any issues that can make adherence difficult,
- be sensitive to the role that families, caregivers, and communities play in different cultures.
- use of evidence-based techniques that emphasize patient activation or empowerment, collaborative goal setting, and problem-solving skills.
- support patient self-management efforts by emphasizing the role of the patient, by recommending and using effective interventions, and care-planning and problem-solving to help patients overcome barriers to self-management activities.
patient and physician behaviors which facilitate self-management of chronic diseases and adherence
- Treatment adherence means following your treatment regimen closely every day—prevent drug Resistance
- Self-management and adherence encompasses all the activities patients perform to control their illness, prevent future complications, and cope with the impact of both the disease and its treatment on themselves and others, and includes:
- Collaborative goal setting
- Monitoring of symptoms
- Lifestyle behaviors such as eating a healthy diet, getting regular exercise, and smoking cessation
- Taking medication in the dose and frequency prescribed
- Communicating with the health care team, family members, and others
- Ongoing problem-solving to overcome potential barriers
five key areas (determinants) include
Economic Stability Education Social and Community Context Health and Health Care Neighborhood and Built Environment
Define epidemiology
- study of the distribution and determinants of health-related states or events (including disease), and the application of this study to the control of diseases and other health problems.
- epidemiological investigations: surveillance and descriptive studies can be used to study distribution; analytical studies are used to study determinants.
-examine patterns of illness in the population and then try to determine why certain groups or individuals develop a particular disease whereas others do not
3 necessary components for a disease to occur –the epidemiological triad (cholera)
-disease progression
Disease Progression 1. time 2. place 3. person epidemiological triad 1. host (humans) 2. vector (contaminated stool) 3. agent (Vibrio Cholerae) 4. environment (water, food)
endemic
- disease that resides within a population
- habitually present in human pop steady state
epidemic
- A sudden and great increase in the occurrence of a disease within a population is referred to as an epidemic
- disease that are visited upon a population
- occurence of disease in community/region above expected levels depend on location, season, conditions of season
- 2-3X expected levels
pandemic
- A rapidly emerging outbreak of disease that affects a wide range of geographically distributed populations is described as a pandemic
- widespread multiple continents