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Risk of syncope recurrence within 5-year follow-up. Risk of syncope recurrence within 5-year follow-up as shown by the Kaplan-Meyer curve. On the X axis, the time of follow-up and the corresponding number of subjects at risk for syncope recurrence are reported. Notice that 9.2% and 11.8% of patients suffered from a syncope relapse within six-month and 1-year follow-up, respectively.
