3.1 Baseline characteristics of the study subjects
Table 1 shows the baseline demographic data of ICE and TEE groups. The mean age was 72 and 69 years old and the prevalence of paroxysmal atrial fibrillation was 35% and 20% in the ICE and TEE groups, respectively. The CHA2DS2-VASc scores were similar (4.2 ± 1.5 and 4.1 ± 1.3) in 2 groups. Frequency of history of prior stroke/TIA was 52.5% and 64%, respectively. The HAS-BLED score was significantly higher in the TEE group.