Fig. 7


Decision curve analysis (DCA) for predicting 1-year AF recurrence risk in the A development and D validation cohorts, 2-year AF recurrence risk in the B development and E validation cohorts, and 3-year AF recurrence risk in the C development and F validation cohorts. The DCA evaluates the effectiveness of the nomogram for clinical use, with the horizontal axis representing decisions for different risk thresholds and the vertical axis expressing the net benefit. Additionally, the shape and position of the curves reflect the advantages of the nomogram scoring system at different decision thresholds