Data for outcomes research is gathered from a variety of sources:
1. Clinical Trials: Controlled environments that provide high-quality data but may lack real-world applicability. 2. Observational Studies: These include cohort studies, case-control studies, and cross-sectional studies, which offer insights into real-world effectiveness. 3. Registries: Collections of data on patients with specific conditions or treatments help monitor long-term outcomes. 4. Administrative Databases: Healthcare records and insurance claims provide large-scale data for population-level analysis.
