Comparative effectiveness research in rheumatoid arthritis (RA) that is based on administrative databases rather than electronic health records or registries is a new research frontier The strengths ...

Observational studies are important tools for providing information on the safety and benefit of approved medications; they provide data on real-life use, rare outcomes and long-term effects that were ...

The combination of electronic medical record data and administrative data provides the fullest picture of patient health histories. Background: Primary care electronic medical records (EMRs) represent ...