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Table 3 INR according to the CHADS2 score, in patients with VKA

From: Stroke with atrial fibrillation or atrial flutter: a descriptive population-based study from the Brest stroke registry

  INR < 2 2–3 INR > 3
CHADS2 = 0 2 (100 %) 0 0
CHADS2 = 1 9 (75 %) 3 (25 %) 0
CHADS2 ≥ 2 29 (55.8 %) 18 (34.6 %) 5 (9.6 %)
  1. Legend: INR: International Normalized Ratio, VKA: Vitamin K Antagonist