Which term refers to data collected on large populations and stored in databases for analysis?

The term that refers to data collected on large populations and stored in databases for analysis is aggregate data. This type of data is crucial in health information management as it compiles information from multiple sources or individuals to provide overall insights and trends about a population. Aggregate data allows for the identification of patterns and can inform health policy and resource allocation.

Clinical data is specific to individual patient encounters and does not typically reflect the broader population. Longitudinal data involves repeated observations of the same variables over time, which is quite different from aggregate data that summarizes multiple data points for analytical purposes. Transfer data refers to information that moves or is shared between systems, rather than a collection focused on analysis of large populations. Therefore, aggregate data is the correct term when discussing large-scale data collection for the purpose of analysis and understanding population health trends.