Ecological Clinical Study

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An Ecological Clinical Study is an Observational Clinical Study that compares clusters of people that are usually grouped based on their geographical location or temporal associations.



References

2016

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Ecological studies have played important roles in understanding how diet affects risk of disease. A 1975 multicountry ecological study linked dietary factors to cancer incidence rates in 23 countries and mortality rates in 32 countries[1].

2014a

  1. Sander Greenland (2001). "Ecologic versus individual-level sources of bias in ecologic estimates of contextual health effects". In: International Journal of Epidemiology, 30(6):1343–1350, DOI:10.1093/ije/30.6.1343

2014b