Background: A new scoring system, the anticoagulation and risk factors in atrial fibrillation
(ATRIA) score, was proposed for risk stratification in patients with atrial fibrillation (AF) …

Background Both US and European guidelines recommend use of the CHA 2 DS 2-VASc
rather than CHADS 2 score for stroke risk stratification in atrial fibrillation (AF). However, the …

Background: Prior studies show that African-American patients have a higher risk of stroke
compared with Caucasians. Objectives: This study hypothesized addition of African …

Background: Previous studies report that CHADS2 and CHA2DS2-VASc risk scores have
similar discriminating ability (C statistic∼ 0.6). Recently a clinically based risk score, the …

Background and Purpose—The age threshold for an increased stroke risk for patients with
atrial fibrillation may be different for Asians and non-Asians. We hypothesized that a …

Background and Purpose—As the threshold of stroke risk for initiating oral anticoagulants is
lowered after the introduction of the nonvitamin K antagonist oral anticoagulants, the focus of …

Abstract Background: Although the CHA2DS2-VASc (congestive heart failure, hypertension,
age 75 years or older, diabetes mellitus, previous stroke or transient ischemic attack …

2666 Stroke October 2017 validation studies showed fair-to-good predictive ability of the
CHADS2 score, with C statistics ranging between 0.56 and 0.82. 18 Despite these validation …

Background Stroke risk in atrial fibrillation (AF) is often assessed at initial presentation, and
risk stratification performed as a 'one off'. In validation studies of risk prediction, baseline …

Background and Purpose—Atrial fibrillation (AF) is an independent risk factor for stroke.
Recent studies have demonstrated that the CHA2DS2-VASc scheme is useful for selecting …