Canadian atrial fibrillation anticoagulation study: were the patients subsequently treated with warfarin? Canadian Atrial Fibrillation Anticoagulation Study Group.

OBJECTIVE: To determine the effect of the results of clinical trials on the behaviour of patients and physicians, the authors ascertained the proportion of patients participating in the Canadian Atrial Fibrillation Anticoagulation (CAFA) study who started or continued warfarin therapy at the end of the study and identified factors affecting the decision to use or not use warfarin. The CAFA study was a double-blind, randomized, …