Table 1.
Demographic and Clinical Characteristics
| |
mTBI (n = 59) |
OI (n = 39) |
|
|
|
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|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | t | df | p value | |
| Age at baseline | 12.05 | 2.22 | 11.18 | 1.88 | 2.02 | 96 | 0.046 |
| Glasgow Coma Scale Score | 14.932 | 0.314 | 15 | 0 | -1.66 | 58 | 0.103 |
| WASI-II Full Scale IQ | 107.64 | 12.15 | 109.03 | 14.67 | -0.49 | 70.73 | 0.627 |
| Days between injury and baseline | 24.29 | 6.68 | 21.69 | 5.88 | 1.97 | 96 | 0.051 |
| Days between injury and MRI | 52.80 | 21.70 | 48.56 | 23.90 | 0.91 | 96 | 0.366 |
| Days between baseline and follow-op | 82.42 | 15.27 | 86.15 | 14.60 | -1.20 | 96 | 0.231 |
| Days between injury and follow-up | 106.24 | 13.92 | 107.59 | 14.25 | -0.47 | 96 | 0.642 |
| Parent HBI—1 month prior to injury | |||||||
| Cognitive | 8.47 | 7.23 | 6.13 | 6.45 | 1.64 | 96 | 0.208 |
| Somatic | 1.58 | 2.44 | 1.08 | 2.60 | 0.97 | 96 | 0.672 |
| Total | 10.05 | 8.51 | 7.21 | 7.52 | 1.70 | 96 | 0.093 |
| Parent HBI—baseline (acute/sub-acute visit) | |||||||
| Cognitive | 9.51 | 8.20 | 5.72 | 6.45 | 2.55 | 93.0 | 0.012 |
| Somatic | 4.98 | 6.12 | 1.36 | 2.60 | 4.03 | 84.4 | 0.000 |
| Total | 14.49 | 12.67 | 7.08 | 7.66 | 3.61 | 95.4 | 0.000 |
| Parent HBI - 3-month follow-up | |||||||
| Cognitive | 8.12 | 7.25 | 6.59 | 6.09 | 1.09 | 96 | 0.558 |
| Somatic | 2.53 | 3.97 | 1.13 | 2.44 | 2.16 | 95.6 | 0.066 |
| Total | 10.64 | 9.51 | 7.72 | 7.18 | 1.73 | 94.2 | 0.087 |
| Parent HBI—3-month follow-up minus baseline (acute/sub-acute visit) difference scores | |||||||
| Total difference | -3.85 | 10.04 | 0.64 | 6.26 | -2.725 | 95.7 | 0.008 |
The p values for the Cognitive and the Somatic domains reflect two-fold Bonferonni correction.
mTBI, mild traumatic brain injury; OI, orthopedic injury; SD, standard deviation; HBI, Health and Behavior Inventory Scale; WASI II, Wechsler Abbreviated Scale of Intelligence-Second Edition; MRI, magnetic resonance imaging.