Table 1.
Demographic and early injury characteristics of study participants
| Characteristic | OI (n = 61)
|
TBI-Mild/Moderate (n = 56)
|
TBI-Severe (n = 23)
|
F (χ2) | |||
|---|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | ||
| Age at injury (years) | 7.8 | 1.8 | 8.0 | 1.9 | 7.5 | 2.2 | 0.554 |
| Age at testing (years) | 10.6 | 1.7 | 10.6 | 1.5 | 10.0 | 1.6 | 1.389 |
| Time from injury to testing (years) | 2.8 | 1.0 | 2.6 | 1.2 | 2.5 | 1.2 | 0.869 |
| Mechanism of injury | |||||||
| Motor vehicle accident | 3 | 6 | 13 | ||||
| Sports/bike related | 43 | 23 | 5 | (30.928)* | |||
| Fall | 15 | 17 | 5 | ||||
| Day of injury CT | |||||||
| Focal lesion | 45 | 13 | (5.083)* | ||||
| Diffuse lesion | 24 | 10 | (.006) | ||||
| Skull fracture | 31 | 12 | (.052) | ||||
| SES | 0.30 | 1.01 | −0.13 | 1.00 | −0.51 | 0.69 | 6.600* |
| WASI IQ | 109.9 | 13.4 | 100.0 | 14.6 | 97.2 | 14.4 | 10.216* |
| Glasgow Coma Scale | 13.8 | 2.0 | 3.9 | 1.7 | — | ||
| Sex (female; male) | 24 female, 37 male | 19 female, 37 male | 9 female, 14 male | (0.413) | |||
| Ethnicity | 54 Caucasian, 3 African/Caribbean descent, 3 Multiracial, 1 Unspecified | 44 Caucasian, 6 African/Caribbean descent, 4 Multiracial, 2 Unspecified | 17 Caucasian, 3 African/Caribbean descent, 0 Multiracial, 3 Unspecified | — | |||
*
p < .05.