HIV/AIDS Glossary

Retrospective Study

A type of medical research study. Retrospective studies look back in time to compare a group of people with a particular disease or condition to a group of people who do not have the disease or condition. Researchers study the medical and lifestyle histories of the people in each group to learn what factors may be associated with the disease or condition.

Search the Glossary

What's this?


AIDSinfo Glossary App

Download Glossary