Retrospective Data

What is retrospective data? 

Retrospective data refers to information collected and analyzed from existing records or events, rather than being gathered in real-time. In research and clinical studies, retrospective data often comes from historical sources like medical records, patient charts, databases, or past clinical trials. This data is analyzed to identify patterns, trends, correlations, and outcomes that inform decision-making.  

Why is retrospective data important?

Retrospective data is a powerful tool in research, providing valuable insights into past events, trends, and outcomes. It plays a critical role in healthcare research, drug safety analysis, and epidemiological studies, helping researchers and policymakers make informed decisions based on real-world evidence. Despite its limitations, retrospective data remains an essential method for understanding disease patterns, treatment efficacy, and long-term outcomes.