Demographic information for cases of sudden cardiac arrest and death in competitive athletes: 1 July 2014–30 June 2018 (n=331)
| Sudden cardiac arrest with survival (n=158) | Sudden cardiac death (n=173) | Total (n=331) | |
| N (%) | N (%) | N (%) | |
| Males | 136 (86.1) | 141 (81.5) | 277 (83.7) |
| Females | 22 (13.9) | 32 (18.5) | 54 (16.3) |
| Mean age (range) | 16.5 (12–27) | 16.9 (11–29) | 16.7 (11–29) |
| Race/ethnicity | |||
| Caucasian | 88 (55.7) | 76 (43.9) | 164 (49.5) |
| African-American | 39 (24.7) | 70 (40.5) | 109 (32.9) |
| Latino/Hispanic | 10 (6.3) | 18 (10.4) | 28 (8.5) |
| Asian | 3 (1.9) | 6 (3.5) | 9 (2.7) |
| Native American | 0 (0) | 2 (1.2) | 2 (0.6) |
| Unknown | 18 (11.4) | 1 (0.6) | 19 (5.7) |
| Athletic level | |||
| Middle school | 22 (13.9) | 29 (16.8) | 51 (15.4) |
| High school | 108 (68.4) | 96 (55.5) | 204 (61.6) |
| College athletes | 21 (13.3) | 23 (13.3) | 44 (13.3) |
| Semiprofessional/professional | 4 (2.5) | 7 (4.1) | 11 (3.3) |
| Recent/former athlete (within 1 year) | 3 (1.9) | 18 (10.4) | 21 (6.3) |
| Activity level at time of arrest | |||
| During exercise | 135 (85.4) | 110 (63.6) | 245 (74.0) |
| Within 1 hour after exercise | 8 (5.1) | 6 (3.5) | 14 (4.2) |
| Relative rest but awake | 13 (8.2) | 27 (15.6) | 40 (12.1) |
| During sleep | 0 (0) | 20 (11.6) | 20 (6.0) |
| Unknown | 2 (1.3) | 10 (5.8) | 12 (3.6) |