Question: What Is The Definition Of Epidemiology?

What is epidemiology and why is it important?

It is the scientific method of investigation problem-solving used by disease detectives— epidemiologists, laboratory scientists, statisticians, physicians and other health care providers, and public health professionals—to get to the root of health problems and outbreaks in a community..

What are the key 6 characteristics of epidemiology?

It extracts six types of epidemiological characteristic: design of the study, population that has been studied, exposure, outcome, covariates and effect size.

What is an epidemiologic triangle?

The Epidemiologic Triangle, sometimes referred to as the Epidemiologic Triad, is a tool that scientists use for addressing the three components that contribute to the spread of disease: an external agent, a susceptible host and an environment that brings the agent and host together.

What is epidemiology in simple words?

Epidemiology is the study (scientific, systematic, data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (patient is community, individuals viewed collectively), and the application of (since …

What are the two types of epidemiology?

Epidemiologic studies fall into two categories: experimental and observational.

What are the five core functions of epidemiology?

Section 4: Core Epidemiologic Functions. In the mid-1980s, five major tasks of epidemiology in public health practice were identified: public health surveillance, field investigation, analytic studies, evaluation, and linkages.

What is the difference between epidemiology and biostatistics?

Epidemiology is the study of diseases in populations. … Biostatistics underpins the methodologies used in epidemiological investigations and research. The discipline has professional epidemiologists and biostatisticians that provide teaching, research and consultancy services within the School of Public Health.

What are the three components of epidemiology?

The epidemiologic triangle is made up of three parts: agent, host and environment.Agent. The agent is the microorganism that actually causes the disease in question. … Host. The agent infects the host, which is the organism that carries the disease. … Environment. … HIV.

What are the basic principles of epidemiology?

Uses of EpidemiologyCount health-related events.Describe the distribution of health-related events in the population.Describe clinical patterns.Identify risk factors for developing diseases.Identify causes or determinants of disease.Identify control and/or preventive measures.More items…•

Who uses epidemiology?

Who uses it? Researchers, health department officials, the government, and health or medical practitioners use epidemiology. This data is used to help identify priority health issues and possible causes of disease or illness.

What are risk factors in epidemiology?

In epidemiology, a risk factor or determinant is a variable associated with an increased risk of disease or infection. Determinant is often used as a synonym, due to a lack of harmonization across disciplines, in its more widely accepted scientific meaning.

What is the definition of an epidemiologist?

An epidemiologist is a doctor who specializes in the patterns of diseases that spread between people. Epidemiologists study things like the causes and treatment of lung disease, for example. If you’re interested in public health or communicable illnesses, you might decide to be an epidemiologist one day.

What is epidemiology and examples?

Epidemiological studies measure the risk of illness or death in an exposed population compared to that risk in an identical, unexposed population (for example, a population the same age, sex, race and social status as the exposed population).

What are the 3 major types of epidemiologic 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). A cohort, or longitudinal, study follows a defined group over time.

Who gives the term epidemiology?

John Snow is famous for his investigations into the causes of the 19th-century cholera epidemics, and is also known as the father of (modern) epidemiology.

Why did you choose epidemiology?

The goal of epidemiology is to guide public health and medical care to interrupt those pathways and improve population health and patient outcomes. Epidemiologists work on almost every imaginable health outcome, from infant mortality to Alzheimer’s disease.

What is the best definition for epidemiology?

By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).

What is the purpose of epidemiology?

Epidemiology is the study of how often diseases occur in different groups of people and why. Epidemiological information is used to plan and evaluate strategies to prevent illness and as a guide to the management of patients in whom disease has already developed.

What is it called when you study diseases?

Epidemiologists are scientists who study diseases within populations of people. In essence, these public health professionals analyze what causes disease outbreaks in order to treat existing diseases and prevent future outbreaks.

What are the four uses of epidemiology?

For community diagnosis of the presence, nature and distribution of health and disease among the population, and the dimensions of these in incidence, prevalence, and mortality; taking into account that society is changing and health problems are changing. To study the workings of health services.