Which of the following best defines 'aggregate data'?

'Aggregate data' is best defined as data compiled from multiple patients. This type of data is collected and presented in a summary form that allows for analysis and interpretation of trends or patterns across a larger population, rather than focusing on individual cases. By aggregating data, healthcare providers and researchers can derive insights that are useful for improving patient care, running healthcare systems efficiently, or conducting epidemiological studies.

Individual patient data would be too granular and would not represent the broader trends that aggregate data illustrates. Data solely collected for research usually pertains to specific inquiries and does not necessarily imply it has been compiled or summarized from various sources. Finally, while private legal data might involve collective information regarding individuals, the primary focus of that information is on confidentiality and legal matters rather than the collective analysis that characterizes aggregate data.