Review:
Case Control Study
overall review score: 4.5
⭐⭐⭐⭐⭐
score is between 0 and 5
A case-control 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.
Key Features
- Identification of cases and controls
- Comparison of exposure or risk factors
- Retrospective design
- Efficient for rare diseases or outcomes
- Relatively quick and inexpensive
Pros
- Allows for the study of rare diseases or outcomes
- Can be conducted relatively quickly and at a lower cost compared to other study designs
- Useful in generating hypotheses for further research
Cons
- Prone to bias due to retrospective design
- Difficulty in establishing temporality of events
- Limited ability to establish causation