Prevention content
| No prevention content, n (%) | Ambiguous prevention content, n (%) | Clear prevention content, n (%) | |
| Overall dataset | 206 (82) | 24 (9.5) | 20 (8) |
| Stories with specific injury events (n=220) | 185 (84) | 19 (8.5) | 17 (8) |
| News outlet | |||
| Associated Press | 149 (85) | 28 (73) | 13 (7.5) |
| New York Times | 28 (73) | 7 (18) | 3 (8) |
| Philadelphia Inquirer | 30 (79) | 4 (10.5) | 4 (10.5) |
| Expression source in story | |||
| Journalist | 91 (89) | 7 (7) | 4 (4) |
| Quoted stakeholder | 114 (78) | 17 (12) | 15 (10) |
| Injured person | |||
| Professional athlete | 117 (82) | 5 (4) | 12 (9) |
| Not professional athlete | 68 (78) | 14 (16) | 5 (6) |