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Stratification of athletes per sport
| Sport | Number of athletes included |
|---|---|
| Professional American football | 154 |
| Professional baseball | 82 |
| Professional hockey | 122 |
| Professional basketball | 67 |
| Olympic swimming | 1 |
| Olympic skiing | 1 |
| Olympic water polo | 2 |
| Professional ballet | 1 |
| Professional martial arts | 1 |
| Professional sailing | 2 |
| Unknown sport | 17 |
| Total number of athletes included in analysis | 450 |
