Chapters 6-10 Flashcards
What is epidemiology?
Study of the distribution and determinants of states of health and illness in a human population
How is epidemiology used as a research methodology
For studying states of health and illness
How is epidemiology used as a body of knowledge
Results from the study of a specific state of health or illness
What is the goal of epidemiology?
Preventing or limiting consequences and to maximize health status
What is an epidemic?
An outbreak that occurs when there is an increased incidence of disease beyond that which is normally found in the population
What is rates?
The primary measurement used to describe either the occurrence or the existence of a specific state of health or illness
Discoveries in early attempts at understanding the reasons for disease were direct result of what
Trial and error observations of individual people
If you had a disease or a disability, how are you perceived in the olden days?
Like you had a great curse in Devine punishment from the spiritual world
When was the study of illness in groups of people developed?
Gradually, and began in the 17th century
List the founders of epidemiology
John Graunt
William Farr
Jon Snow
Florence nightingale
Who was John graunt and the bills of mortality 1662
Study of patterns of disease
analyzed weekly reports of births and deaths in London
Who is William Farr registrar, general 1839
Set up a system for consistent collection of numbers and causes of death/contributing to the understanding of distribution of illness and death
Who is Jon Snow in the Broad Street pump
A physician of the 19th century
Through observation in population data, he investigated the outbreak of Cholera
How did John snow investigate the outbreak of cholera
Observation in population data, he investigated 500 people died within 10 days where it was particularly high by two interwoven, water, mains and heavily sewage populated area
Who is the best known epidemiologists?
Jon Snow
What did Florence Nightingale nurses an epidemiologists do?
Learning from experience gathering data for poor sanitation, leading to infectious disease and documented her results for sanitary reform
Compared soldiers and civilians mortality, rate leading to military healthcare reforms
The epidemiologic triad/triangle health status is determined by the interactions of what
Characteristics of the host agent and environment
What is a host in the epidemiologic triad?
Who’s health status is a concern and what are the host factors modifiable and non-modifiable
What is an agent in the epidemiologic triad?
Five groups:
Physical (heat trauma)
Chemical (pollutants medication’s drugs)
Nutritional (proteins, fats, water, vitamins)
Psychosocial (stress, social, isolation, social report)
Biologic( bacteria, Texans viruses)
What is interfering with normal function?
What is the environment in an epidemiologic triad?
Three categories
Biologic (plants and animals)
Physical (structure of the environment)
Social environment ( culture, technology demographics, political system)
The wheel of causation emphasizes what
the interaction or interplay between physical biological and social environment De-emphasizing the
Agent as the sole cause of disease
What model emphasizes multiple causation in order to interrupt the chain of adverse events?
The web of causation
What is the web of causation?
A model strongly, emphasizing multiple causations to design ways to interrupt the chain of adverse events
Direct and indirect factors can be identified .) drug use
What is an indirect in a direct factor of the web of causation?
Drug use
The natural history of disease integrates what preventative measures
Primary secondary and tertiary preventative measures
What is the primary preventative measure in natural history of diseases?
To prevent onto and healthy people
Pre-pathogenesis
What is the second preventative measure in the natural history of diseases
Secondary signs and symptoms have developed what can be implemented during the early stages
What is the tertiary preventative measures in the natural history of disease?
What can be implemented rehab palliation to help the person
Aggregate to function the capacity
What is the application of the nursing process/problem-solving Focus on
Individual care and epidemiologic care of community
What do the individual assessment and community assessment both due in the epidemiologic principles
Surveillance of behavioral risks of an individual group, or community
A thorough accurate database that provides the evidence and rationales for interventions
What are the seven principles of the application of nursing process?
Promoting healthy lifestyles in education
Using assessment data for planning and implementation of interventions
Preventing in controlling outbreaks
Contributing to a safe and healthy environment
Evaluating the effectiveness of health services
What are epidemiologic descriptive studies design to?
Acquire more information on the occurrence/frequency of the distribution of health and health problems in the community and its magnitude
Acquire more information on the characteristics of person, place and time it affects
Design to show how people different terms of health
Epidemiologic descriptive studies have determined, measurable risk factors for what
Major illnesses
What do epidemiological descriptive studies groups consider?
A population at risk
Information about population at risk
What is an epidemiologic knowledge base
A plan for control and prevention
How can a person be profiled for certain disease?
Look at what factors have been shown through epidemiological research that associate with a disease
Look at what body of epidemiologic knowledge is presenting
What are more valid descriptions of frequencies of state of health?
Ratios proportions in rates
What is a ratio
Fraction, which represents the relationship of two numbers
Number of boys in school to number of girls in school
What is a proportion
Type of ratio includes the quantity in the numerator as the part of the denominator, a relationship of a part to the whole
total number of children in a school divided by the number of boys
What is a rate?
The primary measurement used to describe the occurrence quantity of a state of health in a specific group of people giving a time period
What is crude rates
General or summary rates that measure the occurrence of the health problem or condition being investigated in the entire population
What is adjusted rates
Statistical procedure that removes the effects of differences in the composition of the population,
such as age to compare one group to another/adjusting rates controls for differences
A change in an existing rate for the establishment of a new rate compared to another
What is an incidence rate?
Measure of probability or occurrence that people without a certain condition, will develop that condition over a period of time
Measures the piece of a new illness occurring in a disease free population over time
What is a relative risk ratio?
The ratio of the incidence rate in the expose group, and the incidence rate in the non-expose group
A comparison
What is a prevalence rate
The number of people who have developed the condition compared to the duration of their illness
What is the prevalence period
Measures the number of people, and given population, who have a specific condition that already exist during a specific time
What is a specific rate?
Calculated by person, place or time, more detailed and use smaller groups
What is a periodic change?
Čilić or seasonal respiratory disease, influenza and pneumonia
What are types of incident rates?
Mortality rates
Incidents density
Relative risk ratio
Sensitivity in specificity
What is incidents density?
Unequal periods of observation, for study subjects
What is sensitivity and specificitity
Statistical measures that evaluate the validity and reliability of a test
What is public health research?
To identify community/public health problems, and describe natural history and ideology of diseases