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A case-control study is an observational research design used in epidemiology to identify factors that may contribute to a medical condition by comparing subjects with the condition (cases) to those without it (controls). Researchers retrospectively assess the exposure to potential risk factors in both groups to determine associations. This study design is particularly useful for studying rare diseases because it allows for the efficient gathering of data without having to follow large populations over time. However, it is subject to biases, such as recall bias, since it relies on participants' memory of past exposures.
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What is cofounding factor in epidemiology?
confounding factor is defined as the hidden or the factor which distorts the the experimental unit since it difficult to control ,but in case of epidemiology , the factor that alawys involve in experimental and observational study , which is emphasized or focused on life.
What do epidemiologest study?
Epidemiology is the branch of medical science dealing with the transmission and control of disease.
Who can study epidemiology?
criteria for studying epidemiology
Case study of process control?
what kind of process control case study??
What is epidemiology's?
epidemiology is ofcourse, the study of disease and ewpidemiologists often study the diseases in a certain location, area, of community.
What has the author Staffan Norell written?
Staffan Norell has written: 'A short course in epidemiology' -- subject(s): Research Design, Epidemiology, Cohort Studies, Case-Control Studies
What is the study of factors determining the frequency of health related conditions?
Epidemiology is the study of factors determining the frequency and distribution of health-related conditions within populations. It looks at patterns and causes of diseases to inform public health strategies for prevention and control.
Epidemiology is the study of?
That branch of science which treats of epidemics.
What are the study guides in epidemiology?
Study guides in epidemiology typically provide concise summaries of key concepts, methodologies, and terminology used in the field. They often cover topics such as study design (cohort, case-control, cross-sectional), measures of disease frequency (incidence, prevalence), statistical analysis, and public health implications. These guides may include practice questions, case studies, and visual aids to help students and practitioners reinforce their understanding and application of epidemiological principles. Additionally, they can serve as valuable resources for exam preparation and ongoing education.
In epidemiology does a cohort study require a control group?
In epidemiology, a cohort study does not necessarily require a control group, as it primarily focuses on following a group of individuals (the cohort) exposed to a certain risk factor or intervention over time to observe outcomes. However, including a comparison group can enhance the study's validity by providing a benchmark for evaluating the effects of the exposure. Without a control group, it may be more challenging to attribute observed outcomes directly to the exposure. Ultimately, the design choice depends on the study's objectives and context.
What is the study of Helminthology?
Helminthology is the scientific study of parasitic worms, including flatworms (such as tapeworms) and roundworms (such as hookworms). Researchers in this field study the biology, ecology, epidemiology, and control of these parasites that can infect humans, animals, and plants.
Why is it important to match case subjects and control subjects so closely in a case control study?
so that there is no bias
