This study assessed whether risk stratification in patients with atrial fib
rillation (AF) in the community had a bearing on the likelihood of receivin
g aspirin or warfarin therapy. Seven hundred and fifty patients were identi
fied from 14 practices by means of diagnostic READ codes or repeat prescrip
tions for digoxin from practice computers. The study demonstrates that gene
ral practitioners appreciate the importance of antithrombotic therapy in pa
tients who have suffered stroke, but take poor account of increasing age an
d other independent risk factors. A more proactive approach to risk identif
ication and treatment seems justified.