Descriptive Statistics
The eligibility proportions of all patients were described. The proportion of patients who met each inclusion criterion and conflicted with each exclusion criterion was described.
Clinical characteristics were described and compared between the eligible and the ineligible patients with CHADS2 scores ≥2. Categorical variables were presented as numbers and percentages. Continuous variables were expressed as means ± standard deviation (SDs), median value, or interquartile range. The Student’s t-test or Wilcoxon rank-sum test was performed for continuous variables to evaluate differences in characteristics between the two groups. The chi-square test was used for categorical variables.