Retrospective Data

Retrospective data refers to information collected from past records and events, rather than gathering new data in real-time. It involves analyzing existing data, such as reports, records, or databases, to identify patterns, trends, or insights. This approach is often used in research, business, and healthcare to understand what has happened previously, helping inform decisions or strategies moving forward. Since the data is historical, it provides a look back in time, offering context and understanding without the need for new data collection efforts.