What are the three factors of the epidemiological triangle?
The epidemiologic triangle is made up of three parts: agent, host and environment.
What are the 5 W’s of epidemiology?
The difference is that epidemiologists tend to use synonyms for the 5 W’s: diagnosis or health event (what), person (who), place (where), time (when), and causes, risk factors, and modes of transmission (why/how).
What are host factors in epidemiology?
Host factor is a medical term referring to the traits of an individual person or animal that affect susceptibility to disease, especially in comparison to other individuals.
What are the 3 major types of epidemiological studies?
Three major types of epidemiologic studies are cohort, case-control, and cross-sectional studies (study designs are discussed in more detail in IOM, 2000).
What are aims epidemiology?
The principal aim of epidemiology is to identify factors related to the occurrence of disease. Identification of these factors both causal ( causation) and risk factors, enable developing a rational basis for prevention ( epidemiology, prevention).
What is the main goal of epidemiology?
Epidemiology is defined as “the study of the distribution and determinants of health-related states or events (including disease),” and the goal of epidemiologists is to apply findings to control diseases or health issues.
What are the two main goals of epidemiology?
The objectives of epidemiology include the following: to identify the etiology or cause of disease. to determine the extent of disease. to study the progression of disease.
What are the four methods of epidemiology?
Epidemiological studies generally fall into four broad categories:
- cross-sectional studies.
- case-control studies.
- cohort studies.
- intervention studies.
How does epidemiology help society?
Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected, utilizing relative information to aid in the prevention of future outbreaks. Epidemiologists help to keep the public informed of methods to maintain and improve public health.
How is epidemiology used to improve health?
It is important as it can be used to significantly improve the health of Australians by identifying the prevalence of a condition and morbidity and mortality rates of that condition, giving researchers, health department officials and governments indicators of the existence of health problems within a community.
What are the main measures of epidemiology?
The most commonly used rates in epidemiology to evaluate morbidity are incidence and prevalence. These describe the frequency of disease during a given time period. Mortality rate, also a commonly used epidemiological rate, is a rate used to measure deaths and not morbidity.
What can epidemiology not tell us?
It may tell us how much physical activity people do but does not inform us of the quality of that physical activity. Nor does epidemiology tell us about the quality of life people are living. It can report on self-reported happiness, but beyond this, it is limited in how to determine what is making people happy.
What are the branches of epidemiology?
Major areas of epidemiological study include disease causation, transmission, outbreak investigation, disease surveillance, environmental epidemiology, forensic epidemiology, occupational epidemiology, screening, biomonitoring, and comparisons of treatment effects such as in clinical trials.
What are epidemiological issues?
Epidemiology has been defined as “the study of the distribution and determinants of health-related states or events in specific populations and the application of this study to control of health problems.”3 It tends, for the most part, to use the “medical model” of health need, viewing need in terms of the occurrence …