Table 4.
Univariable and Multivariable Cox Regression Models for New‐Onset AF Based on Follow‐Up Time Interval
| Follow‐up time | Univariate model | Multivariable model | ||
|---|---|---|---|---|
| Crude HR (95% CI) | P value | Adjusted HR (95% CI) | P value | |
| ≤12 mo | ||||
| PVC daily count ≥1000 | 2.38 (1.54–3.68) | <0.001 | 1.60 (1.02–2.50) | 0.040 |
| ≤36 mo | ||||
| PVC daily count ≥1000 | 2.26 (1.71–3.00) | <0.001 | 1.62 (1.22–2.17) | 0.001 |
| ≤48 mo | ||||
| PVC daily count ≥1000 | 2.25 (1.74–2.90) | <0.001 | 1.66 (1.28–2.16) | <0.001 |
Multivariable model: adjusted for age, sex, diabetes, hypertension, heart failure, coronary artery disease, alcoholism, and hyperthyroidism. AF indicates atrial fibrillation; HR, hazard ratio; and PVC, premature ventricular complex.