Table 3. Relationship among SEC, type of AF, and thromboembolic events.
| Paroxysmal | Non-paroxysmal | |||||
|---|---|---|---|---|---|---|
| Thromboembolic events (-) | Thromboembolic events (+) | p value | Thromboembolic events (-) | Thromboembolic events (+) | p value | |
| SEC | 123 (9.0%) | 15 (15.3%) | 0.041 | 348 (34.8%) | 44 (36.7%) | 0.691 |
| Dense SEC | 12 (0.9%) | 4 (4.1%) | 0.019 | 63 (6.3%) | 9 (7.5%) | 0.623 |
| OR | 95% CI | p value | OR | 95% CI | p value | |
| SEC | 1.818 | 1.017–3.247 | 0.044 | 1.083 | 0.731–1.605 | 0.691 |
| Dense SEC | 4.773 | 1.510–15.085 | 0.008 | 1.199 | 0.581–2.478 | 0.623 |
AF: atrial fibrillation; CI: confidence interval; OR: odds ratio; SEC: spontaneous echocontrast.