Table 1.
Characteristics of Student-Athletes With Sport-Related Concussions Recorded in the Head Injury Reporting System
| Characteristic |
No. (%) |
| Sex | |
| Male | 10 483 (65.5) |
| Female | 5518 (34.5) |
| Grade level | |
| Sixth–eightha | 166 (1.0) |
| Freshman | 4689 (29.3) |
| Sophomore | 4477 (28.0) |
| Junior | 3488 (21.8) |
| Senior | 3181 (19.9) |
| Concussion history? | |
| Yes | 2470 (15.4) |
| Initial examinerb | |
| Athletic director | 480 (3.0) |
| Athletic trainer | 11 404 (71.3) |
| Coach | 5673 (35.5) |
| Doctor of osteopathic medicine | 178 (1.1) |
| Medical doctor | 749 (4.7) |
| Nurse practitioner | 56 (0.4) |
| Physician assistant | 80 (0.5) |
| Sideline emergency personnel | 279 (1.7) |
| Other appropriate health care provider | 460 (2.9) |
| No. of initial examiners | |
| 1 | 12 990 (81.2) |
| 2 | 2716 (17.0) |
| ≥ 3 | 295 (1.8) |
a
Data from Michigan High School Athletic Association middle schools are not included in the Head Injury Reporting System. However, data from middle school–aged student-athletes participating in high school sports were included in the analyses.
b
Patients with sport-related concussion may have had >1 initial examiner, so the percentages do not total 100%.