Table 3.
Incidence rates of atrial fibrillation stratified on age groups and ESVEA
| N | AF, n | Time at risk (years) | AF per 1000 person-years (95% CI) | P value† | |
|---|---|---|---|---|---|
| Age <65 n = 494 | |||||
| - ESVEA | 453 | 17 | 3613 | 4.7 (3.0–7.9) | Reference |
| + ESVEA | 41 | 8 | 300 | 26.7 (14.0–56.3) | <.001 |
| Age ≥65 n = 288 | |||||
| - ESVEA | 228 | 29 | 1441 | 20.1 (14.0–29.7) | Reference |
| + ESVEA | 60 | 15 | 320 | 46.9 (28.0–82.6) | .0104 |
AF = atrial fibrillation; ESVEA = excessive supraventricular ectopic activity.
†
P value is the log-rank test for equality of survivor function.