TABLE 3

Injury Characteristics of the 10-Year Sample

Injury characteristicsMildModerateSevere
n72013
GCS on admission, M (SD)a13.57 (1.51)10.85 (1.92)5.69 (2.14)
Neurologic signs, n (%)a9 (45.00)12 (92.31)
Abnormal CT/MRI, n (%)a15 (75.00)13 (100)
Cause of injury
 Passenger, n (%)1 (5.00)3 (23.10)
 Pedestrian, n (%)2 (10.00)4 (30.70)
 Falls, n (%)7 (100.00)14 (70.00)3 (23.10)
 Other, n (%)3 (15.00)3 (23.10)
Pathology location: acute CT/MRI scan
 No pathology detected, n (%)7 (100.00)12 (60.00)2 (15.38)
 Frontal only, n (%)2 (10.00)5 (38.50)
 Extrafrontal only, n (%)5 (25.00)2 (15.38)
 Frontal + extrafrontal, n (%)2 (15.38)
 Subcortical, n (%)1 (5.00)1 (7.68)
 Cortical + subcortical, n (%)1 (7.68)
 Surgical intervention, n (%)a6 (30.00)9 (69.23)
 Coma <1 day, n (%)a7 (100.00)19 (95.00)3 (23.10)
Brain area cm3 (SD)
 Total brain volume1236 (176)1206 (118)1144 (165)
 Intracranial volume1517 (154)1493 (120)1454 (171)
 Cerebrospinal fluid280 (45)287 (63)309 (40)
 Gray matter798 (125)777 (92)744 (99)
 White matter438 (57)430 (45)400 (71)
  • a Significant relationship between severity and injury characteristics, all Ps < .01.