Executive Summary: A Realist Review of What Works to Improve Data Use for Immunization

The goal of the Immunization Data: Evidence for Action (IDEA)

project is to identify, review, synthesize, and disseminate

what works to improve the use of immunization data and

why it works. In partnership with the Pan American Health

Organization, the Health Systems Analytics team at PATH

conducted a “realist” systematic review of existing research

evidence to answer two principal research questions:

01. What are the most effective interventions to improve the use of

data for immunization program and policy decision-making?

02. Why and how do these interventions produce the outcomes that

they do?