Clinical and demographic characteristics of patients with mTBI
| No. (%) or Mean (SD) | |
|---|---|
| Age (yr) | 17.7 (5.6) |
| Male sex | 44 (69%) |
| Prior concussion | 15 (23%) |
| Postconcussive headache | 29 (45%) |
| Injury mechanism: | |
| Sports injury | 40 (63%) |
| Motor vehicle collision | 5 (8%) |
| Time to presentation (days) | 10.1 (10–50)a |
| Initial Total Symptom Score | 33.7 (24) |
| Verbal Memory Score (percentile) | 32.5 (29) |
| Visual Memory Score (percentile) | 27.1 (28) |
| Processing Speed Score (percentile) | 36.1 (29) |
| Reaction Speed Score (percentile) | 33.5 (29) |
| Recovery time (wk) | 36.6 (11–74) |
↵a Time intervals are presented as median (interquartile range).