Kaplan-Meyer of AF recurrences in athletes.
Most (72%) of the athletes resumed vigorous exercise after at least 3 months from the CA, successfully passed preparticipation screening and could be eligible again for competitive sport activities in agreement with Italian sport protocols.
Ouctomes in athletes vs non-athletes. After the first year of follow-up, athletes had a 48% reduced risk of recurrences than NA [adjusted hazard ratio (HR) on antiarrhythmic drugs, LA volume and AF subtype, HR 0.52]. These data were confirmed and more significant in an age-related analysis in which young patients (< 49 years old) were compared to old patients (> 49 years old) of both groups. Young athletes had a risk of AF recurrences 4 times lower (HR 3.98) than young NA, while elderly athletes had a 46% reduced risk of AF recurrences (HR 1.46) than elderly NA. These differences were not statistically significant due to low sample size, but showed a positive trend in athletes vs NA (Figure 3 ).