Table 2. Participant Demographics and Injury Characteristics.
| GENDER | AGE INJURY,AGE AT ASSESSMENT | TIME SINCEINJURY | CAUSE OF INJURY | TYPE OF INJURY | GCS Scene;GCS Lowest | PTA(days,hours) | LOC | SURGICALINTERVENTION(YES, NO) | CT (Abnormal,Normal) | NEUROLOGICALSIGNS(present, absent) | TBISEVERITY |
| M | 16 y,17 y 9 m | 1 yr 11 mo | MVA (occupant) | Acceleration/deceleration | NA; GCS = 4 | 21 DAYS | NA | NO | ABNORMAL | PRESENT | MSD |
| F | 11 y 9 m,13 y, 11 M | 2 yrs 2 mo | Sports-related headcollision withstationary object | Direct Impact, headagainst object.Skull fracture. | NA; GCS = 12 | 24 HOURS | <1 MIN | YES | ABNORMAL | PRESENT | MSD |
| M | 14 y, 10 m17 y, 1 m | 2 yrs 3 mo | Sports-related headcollision with ground | Direct impact, headagainst object | NA; GCS = 13 | NA | <1 MIN | NO | NORMAL | PRESENT | MP |
| M | 13 y, 3 m15 y, 5 m | 2 yrs 2 mo | Sports-related headcollision with ground | Direct impact, headagainst object | NA; NA | NA | SHORTDURATION | NO | NORMAL | PRESENT | MP |
| M | 12 yrs,10 mo 17 y | 4 yrs 2 mo | MVA (occupant) | Acceleration/deceleration | NA; GCS = 3 | NA | NA | YES | ABNORMAL | PRESENT | MSD |
| *F | 15 yrs, 0 mo18 y, 5 m | 3 yrs 5 mo | Violence/assault | Direct impact, blowto the head | NA; NA | NA | NA | NO | NORMAL | PRESENT | SP |
| M | 12 yrs, 3 mo19 y, 2 m | 6 yrs 11 mo | Violence/assault | Direct impact, headagainst object | NA; NA | NA | NA | NO | NORMAL | PRESENT | SP |
| M | 4 yrs, 4 mo15 y, 1 m | 10 yrs 9 mo | MVA (occupant) | Acceleration/deceleration | NA; GCS = 7 | NA | NA | YES | ABNORMAL | PRESENT | MSD |
| F | 11 yrs, 3 mo18 y, 6 m | 7 yrs, 3 mo | MVA (occupant) | Acceleration/deceleration | NA; NA | NA | SHORTDURATION | NO | ABNORMAL | PRESENT | MSD |
| F | 12 yrs, 9 mo19 y, 6 m | 6 yrs, 7 mo | MVA (pedestrian) | Direct impact, headagainst object | NA; GCS = 13 | NA | NA | NO | ABNORMAL | PRESENT | MSD |
| M | 13 yrs, 0 mo16 y | 3 yrs, 0 mo | Sports-related headcollision with ground | Direct impact, headagainst object | NA; NA | NA | SHORTDURATION | NO | NORMAL | PRESENT | MP |
NA = information was not documented in medical file; Short Duration = written as “short duration” in the medical file, no time/quantifiable duration recorded; TBI severity reported according to Mayo Classification System [29]; SP = symptomatic possible TBI; MP = mild probable TBI; MSD = Moderate-severe definite TBI. *Previous skull fracture as infant (<1 year of age).