Figure 2.

Percentage of eligible patients with AF discharged with warfarin therapy prescribed at baseline (BL) and over 12 quarters (Q) of participation in the GWTG program. Solid line, percentage of adherence in patients with only a history of AF documented (group 2); dashed line, adherence in patients with electrocardiographically documented AF (group 1). Patients in group 1 had a higher adherence rate compared with patients in group 2. Adherence to anticoagulation guidelines improved over time in group 1, but not in group 2.