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Circular epidemiology
1Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, PA 15261, USA.
American Journal of Epidemiology
|November 5, 1999
Summary
Circular epidemiology involves repeating studies even after an association is proven or disproven, hindering public health advancements. This practice limits epidemiological research progression and the acquisition of novel public health knowledge.
Area of Science:
- Epidemiology and Public Health Research
Background:
- A core challenge in epidemiology is the absence of systematic methods for generating new knowledge to enhance public health and preventive medicine.
- Research funding and focus often favor the continuation of studies on already established hypotheses, rather than exploring new avenues.
Purpose of the Study:
- To define and critically examine the concept of circular epidemiology.
- To highlight the limitations of circular epidemiology in advancing public health and preventive medicine.
- To advocate for a more progressive and systematic approach in epidemiological research.
Main Methods:
- Conceptual analysis of epidemiological study progression.
- Critique of research practices that perpetuate studies beyond established conclusions.
- Examination of the evolution from descriptive to analytical and experimental study designs.
Main Results:
- Circular epidemiology represents an extreme form of consistency studies, continuing research past the point of certainty regarding an association.
- This approach stagnates the evolution of epidemiological studies, preventing progression from descriptive to more advanced designs like clinical trials.
- High-quality epidemiological journals frequently publish studies that reiterate known findings or present minor variations on existing themes.
Conclusions:
- Circular epidemiology impedes the systematic acquisition of new knowledge crucial for public health.
- A shift towards more dynamic and innovative research methodologies is necessary to overcome the limitations of circular epidemiology.
- Encouraging progression through study designs is vital for meaningful advancements in epidemiology and preventive medicine.
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