Rehabilitation Research and Practice / 2012 / Article / Tab 2

Clinical Study

Outcome from Complicated versus Uncomplicated Mild Traumatic Brain Injury

Table 2

Demographic and injury severity characteristics.

Uncomplicated MTBIComplicated MTBI
MSDMSD

Age (in years)30.89.029.210.90.601.17
Education (in years)13.12.312.92.30.859.06
WAIS-III information (SS)10.92.410.41.40.492.23
GCS score in ED14.90.314.90.30.693.13
Days tested after Injury26.02.925.43.00.523.21
Duration of loss of consciousness (minutes)0.61.51.01.50.514.25
Duration of posttraumatic amnesia (minutes)333.0448.2366.7420.80.822.08
Duration of retrograde amnesia (minutes)9.223.621.566.60.354.34
Number of days to return to work12.918.858.083.80.0021.2

f%f%χ 2

Gender
 Male  1750.0753.80.813
Mechanism of injury
 MVA1544.1538.50.726
Other bodily injuries926.5430.80.768
CT: day of injury
 Abnormal       00861.5
MRI: 3 weeks after  
 Abnormal  001292.3
 Not available0017.7

Note: (uncomplicated MTBI, ; complicated MTBI, ). Cohen’s effect size (d): small (.20), medium (.50), large (.80). CT= computed tomography; MRI:magnetic resonance imaging; GCS: Glasgow Coma Scale; MTBI: mild traumatic brain injury; MVA: motor vehicle accident. A Mann-Whitney U test was used for the number of days to return to work comparison.