A CALIBER Study: Risk Factors for Stroke, Heart Failure, and Myocardial Infarction in Atrial Fibrillation

Active, not recruiting

Phase N/A Results N/A

Eligibility Criteria

Inclusion Criteria

- Patients with a coded diagnosis for atrial fibrillation in their primary or secondary care record.
- Patients in GPRD practices which are deemed "up to standard" by GPRD criteria
- Patients whose records are deemed "acceptable" by GPRD criteria and contain at least one year of data
- Patients whose age and sex, as recorded in GPRD is the same as that recorded in HES.

Exclusion Criteria

- A diagnosis of heart failure, stroke, or myocardial infarction occurring before diagnosis of atrial fibrillation