fig3
Figure 3. Forest plot of the multivariate Cox analysis for the SAF group. Hazard ratio (HR) with 95% confidence interval (CI) and P values are shown for postoperative BMI grade and AF duration. The reference groups were BMI < 24 kg/m2 and AF duration ≤ 12 months, respectively. SAF: Persistent atrial fibrillation; BMI: body mass index; AF: atrial fibrillation
