State of the Evidence 2021

Authors: Elijah Olivas and Hannah Marcus

Every year, CHW Central collects and makes available in our resource database as many resources related to CHWs—articles, gray literature, tools—as we can find. In 2021, we found 442 resources. That’s a lot of information—far too much for most program managers, CHWs, or researchers to go through. To make the scope of evidence more accessible, this brief state of the evidence report summarizes the nature and key findings of the CHW research, tools, and other resources published in 2021. Readers will find recommendations for further reading in each section of the report and a comprehensive list of citations in the Appendix. Links to all 442 resources can be accessed through the CHW Central Resources page.