Table 4.
Multivariable Cox regression models for atrial fibrillation, heart failure, and stroke by strata of premature ventricular complexes and premature atrial complexes
| Low PVCs and PACs |
High PVCs, low PACs |
High PACs, low PVCs |
High PVCs and PACs |
|||||
|---|---|---|---|---|---|---|---|---|
| HR (95% CI) | Events/subjects | HR (95% CI), P value | Events/subjects | HR (95% CI), P value | Events/subjects | HR (95% CI), P value | Events/subjects | |
| Atrial fibrillation | ref | 34/221 | 1.3 (0.7–2.5), .455 | 13/60 | 1.5 (0.8–2.7), .200 | 21/60 | 4.1 (2.4–6.8), <.001 | 21/34 |
| Heart failure | ref | 10/221 | 2.1 (0.7–6.4), .196 | 5/60 | 1.0 (0.3–3.7), .998 | 4/60 | 4.3 (1.7–11.4), .003 | 9/34 |
| Stroke | ref | 8/220 | 2.3 (0.7–7.5), .183 | 5/59 | 2.6 (0.9–7.5), .070 | 10/60 | 3.1 (1.0–9.7), .055 | 5/33 |
All models are weighted for the stratified sampling. Age was used as a time scale. Adjusted for sex, ever-smoking status, body mass index, and the use of blood pressure medication.
Low PVCs and PACs = quartiles 1–3 for PVCs and PACs; high PVCs and PACs = quartile 4 for PVCs and PACs.
CI = confidence interval; HR = hazard ratio; PAC = premature atrial complex; PVC = premature ventricular complex.