TABLE 1—
Characteristic | Concussion Group (n = 70), Median (IQR) or No. (%) | Extremity Injury Group (n = 108), Median (IQR) or No. (%) |
Age, y | 15.5 (15–17) | 16.0 (15–18) |
College (vs high school) | 17 (24) | 26 (24) |
Male | 45 (64) | 73 (68) |
Race | ||
White | 53 (76) | 75 (69) |
Black | 6 (9) | 19 (18) |
Other | 11 (16) | 13 (12) |
Unknown | 0 (0) | 1 (1) |
Hispanic ethnicity | 2 (3) | 6 (6) |
Type of insurance | ||
Private | 53 (76) | 67 (62) |
Public | 16 (23) | 41 (38) |
Unknown | 1 (1) | 0 (0.0) |
No. of previous concussions | ||
0 | 37 (53) | 69 (64) |
1 | 20 (29) | 21 (19) |
2 | 8 (11) | 9 (8) |
≥ 3 | 5 (7) | 9 (8) |
Preinjury grade point averagea | 3.5 (3.2–3.8) | 3.5 (3.0–3.7) |
Learning disability | 4 (6) | 9 (8) |
ADD/ADHD | 11 (16) | 18 (17) |
Plays organized sportb | 57 (81) | 85 (80) |
Note. IQR = interquartile range; ADD = attention deficit disorder; ADHD = attention deficit/hyperactivity disorder.
Sample size was n = 164 (63 for concussion, 101 for extremity injury).
Only among those who completed the 1-week postinjury interview (n = 176: 70 for concussion, 106 for extremity injury).