# ecological study

> studies of risk-modifying factors on health or other outcomes based on populations defined either geographically or temporally

**Wikidata**: [Q295136](https://www.wikidata.org/wiki/Q295136)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ecological_study)  
**Source**: https://4ort.xyz/entity/ecological-study


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)