Table 2.
Incidence of atrial fibrillation, heart failure, and stroke by quartiles of premature ventricular complex frequency
| All |
Quartile 1 0–2.1 PVCs/24 hours |
Quartile 2 2.1–10.0 PVCs/24 hours |
Quartile 3 10.0–77.2 PVCs/24 hours |
Quartile 4 77.2–19,990.5 PVCs/24 hours |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Incidence/1000 person-years (95% CI) | Events/subjects | Incidence/1000 person-years (95% CI) | Events/subjects | Incidence/1000 person-years (95% CI) | Events/subjects | Incidence/1000 person-years (95% CI) | Events/subjects | Incidence/1000 person-years (95% CI) | Events/subjects | |
| Atrial fibrillation | 16.4 (13.3–20.2) | 89/375 | 11.9 (7.2–19.7) | 15/86 | 10.1 (6.1–16.7) | 15/101 | 17.8 (12.0–26.3) | 25/94 | 26.9 (19.2–37.6) | 34/94 |
| Heart failure | 4.9 (3.4–7.1) | 28/375 | 3.0 (1.1–7.9) | 4/86 | 3.2 (1.3–7.8) | 5/101 | 3.3 (1.4–8.0) | 5/94 | 10.3 (6.1–17.3) | 14/94 |
| Ischemic stroke | 4.9 (3.4–7.2) | 28/372 | 1.5 (0.4–6.0) | 2/85 | 4.5 (2.2–9.5) | 7/101 | 6.2 (3.2–11.8) | 9/94 | 7.6 (4.1–14.1) | 10/92 |
CI = confidence interval; PVCs = premature ventricular complexes.