Comparisons of Baseline Characteristics between Eligible and Ineligible Patients with CHADS2 Score ≥2
Figure 1 presents the flow diagram of the study. We excluded patients with CHADS2 <2 (n=2063, 26.4% of all registered patients) from comparing outcomes. Table 3 presents the baseline characteristics of the eligible and ineligible patients with CHADS2 ≥2. Ineligible patients were more likely to be elderly, female, and have comorbidities such as stroke, heart failure, coronary artery disease, chronic liver disease, and kidney disease than the eligible patients. The CHADS2 score after excluding patients with <2 and the HAS-BLED score were significantly higher in ineligible patients than in eligible patients.