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Kaplan-Meier curves for freedom from AF after ablation by CAAP-AF (A) and APPLE (B) scores. CAAP-AF scores grouped into 1–2, 3–5, and 6–7. APPLE scores grouped into 0–1, 2, and 3–4. AF recurrence was defined as electrocardiographic recurrence. 95% confidence intervals are denoted by error bars.
