A case-control study, like other medical research, ... A good example of this is to compare the number people with lung cancer who have a history of smoking with the number who do not.

Previously in this series I have given an overview of the main types of study design and the techniques used to minimise biased results. In this article I describe more fully case control studies ...

Study Design and Study Sample. We conducted a case-control study using the inpatient admission records of Robert Wood Johnson University Hospital (RWJUH) in New Brunswick, New Jersey.

For example, if they wanted to study rates of heart disease in older age, ... Case-control studies involve identifying people who already have a disease (the “case”) ...

For example, in an observational study, this might just reflect the proportion of people exposed and not exposed to the factor of interest; in a case-control study, the outcome may be rare and so we ...

Study Details Anderson and colleagues obtained data from the National Birth Defects Prevention Study , a population-based, multisite case-control study in the U.S., and included pregnancies from ...

Honolulu, Hawaii — More evidence that smoking cannabis is associated with an increased risk for stroke has come from a New Zealand study. The first case-control study to investigate this ...

Scanning can be used in various study designs, including case–control studies, cohort studies, and clinical trials, as long as it is recognized that the known strengths and weaknesses of these ...

Table II: Sample worksheet for calculating a risk-evaluation score. Risk control. In the current case study, risk-reduction and acceptance decisions centered on patient safety. Despite the apparently ...