Table 1

Patient characteristics

Patient characteristicAll patients
(n=2241)
Sport duration <150 min/week
(n=423)
Sport duration 150–300 min/week (n=716)Sport duration >300 min/week
(n=951)
Control group/no sports activity
(n=151)
Age, mean (SD), years42 (15)47 (12)46 (13)37 (16)47 (12)
Sex, n (%)
 Male1593 (71)257 (61)494 (69)751 (79)91 (60)
 Female648 (29)166 (39)222 (31)200 (21)60 (40)
Ethnicity, n (%)
 Caucasian2045 (91)391 (92)679 (95)851 (89)124 (82)
 Black155 (7)21 (5)29 (4)84 (9)21 (14)
 Other41 (2)11 (3)8 (1)16 (2)6 (4)
Sudden cardiac death in first-degree family, n (%)
 Yes16 (1)5 (1)8 (1)3 (<1)0 (0)
 No2225 (99)418 (99)708 (99)948 (100)0 (0)
Sports discipline, n (%)
 A113 (1)5 (1)2 (<1)6 (1)
 A28 (<1)3 (1)4 (1)1 (<1)
 A3265 (13)92 (22)79 (11)94 (10)
 B110 (<1)3 (1)1 (<1)6 (1)
 B24 (<1)0 (0)1 (<1)3 (<1)
 B31 (<1)0 (0)0 (0)1 (<1)
 C1230 (11)27 (6)39 (5)164 (17)
 C2356 (17)141 (33)142 (20)73 (8)
 C3516 (25)67 (16)164 (23)285 (30)
 Multiple687 (33)85 (20)285 (40)318 (33)
  • Early repolarisation was found in 502 athletes (24%) and in 26 non-athletes (17%).