Babylon 10
Simply the best definition!

Download it's free

Ecological study

Wikipedia English The Free Encyclopedia

Download this dictionary
Ecological study
Ecological studies are studies of risk-modifying factors on health or other outcomes based on populations defined either geographically or temporally. Both risk-modifying factors and outcomes are averaged for the populations in each geographical or temporal unit and then compared using standard statistical methods.

See more at Wikipedia.org...


© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License

EUFIC Nutrition Dictionary

Download this dictionary
Ecological study
A study that compares the rates of exposures and diseases in different populations using aggregate data on exposure and disease, not individual data.

Copyright © 2006, EUFIC - European Food Information Council. All rights reserved.

| Ecological study in Italian