2023年2月4日 · Case-control studies are a type of observational study often used in fields like medical research, environmental health, or epidemiology. While most observational studies are qualitative in nature, case-control studies can also be quantitative, and they often are in healthcare settings.

A case–control study (also known as case–referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.

2023年7月31日 · A case-control study is an observational study where researchers analyzed two groups of people (cases and controls) to look at factors associated with particular diseases or outcomes. Below are some examples of case-control studies:

A case control study is a retrospective, observational study that compares two existing groups. Researchers form these groups based on the existence of a condition in the case group and the lack of that condition in the control group.

2023年8月3日 · A case-control study (also known as a case-referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.

For a given disease, a case-control study can investigate multiple exposures (when the real exposure is not known). A case-control study is preferred when the disease is rare because investigators can intentionally search for the cases.

Case control studies are also known as "retrospective studies" and "case-referent studies." Retrospective studies have more problems with data quality because they rely on memory and people with a condition will be more motivated to recall risk factors (also called recall bias).

case-control study, in epidemiology, observational (nonexperimental) study design used to ascertain information on differences in suspected exposures and outcomes between individuals with a disease of interest (cases) and comparable individuals who do …

2023年12月13日 · A case–control study is an observational study designed to determine if a risk factor is associated with an outcome of interest (disease or condition). This study design permits the researcher to determine if an exposure is associated with an outcome.

A case control study is a type of observational research commonly used in the field of epidemiology. It is designed to help researchers identify factors that may contribute to a particular outcome, such as a disease or condition, by comparing subjects who have that outcome (cases) with those who do not (controls).