Table 1.
Patient Characteristics for SCA Associated With Sports Versus Not Associated With Sports.
| Sports-Associated SCA N=63 |
Non Sports-Associated SCA N=1,184 |
P Value | |
|---|---|---|---|
| Demographic data | |||
| Age — yr | |||
| Mean±SD | 51.1±9 | 53.1±8 | 0.08 |
| 35–50 | 39 (62) | 648 (55) | 0.26 |
| 50–65 | 24 (38) | 536 (45) | |
| Timing — no. (%) | |||
| Weekend | 28 (44) | 314 (27) | 0.002 |
| Timing | <0.001 | ||
| Morning (6:00 am to 12:00 pm) | 16 (25) | 358 (30) | |
| Afternoon (12:00 pm to 6:00 pm) | 23 (37) | 268 (23) | |
| Night (6:00 pm to 06:00 am) | 7 (11) | 234 (20) | |
| Unknown | 17 (27) | 324 (27) | |
| Seasons | 0.24 | ||
| Summer | 19 (30) | 258 (22) | |
| Autumn | 14 (22) | 288 (24) | |
| Winter | 12 (19) | 340 (29) | |
| Spring | 18 (29) | 298 (25) | |
| Number of cardiovascular risk factor — no. (%) | 0.38 | ||
| None | 18 (43) | 354 (33) | |
| One | 9 (19) | 159 (15) | |
| More than one | 18 (38) | 509 (48) | |
| Type of cardiovascular risk factor — no. (%) | |||
| Diabetes mellitus | 4 (8) | 315 (28) | 0.002 |
| Dyslipidemia | 16 (33) | 290 (26) | 0.27 |
| Systemic hypertension | 19 (40) | 528 (47) | 0.28 |
| Body mass index (Kg/m2) | 29±6 | 30±8 | 0.21 |
| Smoking | 10 (31) | 451 (61) | 0.001 |
| Known heart disease — no. (%)* | 10 (16) | 358 (30) | 0.01 |
| Coronary artery disease | 5 (8) | 220 (19) | 0.03 |
| Atrial fibrillation | 3 (5) | 64 (5) | 0.82 |
| Heart failure | 3 (5) | 185 (16) | 0.02 |
| Pacemaker | 3 (5) | 56 (5) | 0.95 |
| Implantable Cardioverter Defibrillator | 0 (0) | 2 (0) | 1 |
SD denotes Standard Deviation. Percentages were calculated on the basis of the total number of known events.
*
Among consent survivors or deceased patients with medical records available (N=583, including 45 sports-associated SCA).