Demographic information for student-athletes with exercise-related sudden cardiac
| Sudden cardiac arrest with survival n (%) | Sudden cardiac death n (%) | Total n (%) | |
| Sex | |||
| Male | 68 (91) | 30 (83) | 98 (88) |
| Female | 7 (9) | 6 (17) | 13 (12) |
| Mean age, years (range) | 15 (14–18) | 16 (13–18) | 16 (13–18) |
| Race | |||
| White non-Hispanic | 41 (55) | 13 (36) | 54 (49) |
| Black/African American | 18 (24) | 16 (44) | 34 (31) |
| Asian | 1 (1) | 1 (3) | 2 (2) |
| White Hispanic | 5 (7) | 6 (17) | 11 (10) |
| Unknown | 10 (13) | 0 (0) | 10 (9) |
| Activity at time of arrest | |||
| During organised practice | 36 (48) | 26 (72) | 62 (56) |
| During competition | 28 (37) | 5 (14) | 33 (30) |
| During strength and conditioning | 1 (1) | 1 (3) | 2 (2) |
| Physical education class | 5 (7) | 3 (8) | 8 (7) |
| Pick-up game (not team sanctioned) | 2 (3) | 0 (0) | 2 (2) |
| Exercise/conditioning (not team sanctioned) | 0 (0) | 1 (3) | 1 (1) |
| Other recreational activity | 3 (4) | 0 (0) | 3 (3) |
| Total | 75 | 36 | 111 |