Of the different epidemiological study designs available to test the association between risk factor and disease, the best design is of-
- Coho study gives the strongest evidence of association. - Strength of association in coho study is calculated by: Relative risk - Best indicator as it has lower biases as compared to other studies. Attributable risk. Population attributable risk.
Case-control study
Ecological study
Coho study
Cross-sectional study
Classification, Coho Study