Table I.
Demographic Information, Injury Characteristics, Cognitive Measures, and Adjustment Measures by Injury Group
| OI (n = 32) | Mild/Moderate TBI (n = 40)a | Severe TBI (n = 15) | |
|---|---|---|---|
| Demographic information | |||
| Age in years at injury (mean, SD) | 7.84 (1.97) | 8.08 (1.82) | 7.17 (2.14) |
| Age in years at assessment (mean, SD) | 10.57 (1.62) | 10.57 (1.30) | 9.68 (1.40) |
| Years from injury to assessment (mean, SD) | 2.73 (1.07) | 2.48 (1.20) | 2.51 (1.18) |
| Gender (male/female) | 20/12 | 25/15 | 8/7 |
| Caucasian/African–American/Multiracial | 29/0/2 | 34/1/3 | 9/3/0 |
| SES composite standard score (mean, SD)** | 0.44 (0.94) | −0.10 (1.06) | −0.60 (0.50) |
| Injury characteristics | |||
| Mechanism of Injury** | |||
| Motor vehicle related (n, %) | 2 (6%) | 12 (30%) | 10 (67%) |
| Fall (n, %) | 6 (19%) | 12 (30%) | 2 (13%) |
| Sports/recreational/bicycle/other (n, %) | 24 (75%) | 16 (40%) | 3 (20%) |
| Lowest Glasgow Coma Scale (GCS) score (mean, SD)b,** | n/a | 14.05 (1.68) | 3.730 (1.75) |
| Abnormal brain CT scan at time of injury (n, %) | n/a | 38 (95%) | 12 (80%) |
| Cognitive measures | |||
| Full-Scale intelligence quotient (IQ)c (mean, SD)** | 112.25 (12.74) | 99.70 (14.58) | 92.87 (12.48) |
| Executive Function Composite (mean, SD)** | 97.18 (16.40) | 85.39 (20.90) | 71.14 (18.89) |
| Theory of Mind Composite (mean, SD)** | 67.29 (14.58) | 60.33 (17.64) | 43.99 (18.28) |
| Adjustment Measures | |||
| Adjustment Composite (mean, SD) | 102.61 (9.53) | 101.17 (13.51) | 95.14 (11.36) |
Note. OI = orthopedic injury; TBI = traumatic brain injury; SES = socioeconomic status.
aModerate TBI, n = 7; complicated mild TBI, n = 33.
bThe GCS has a range of 3–15.
cIQ measured using two-subtest form of Wechsler Abbreviated Scale of Intelligence.
**p < .01.