Table 1.
Demographic and injury characteristics of the sample
| Variable | TD Control | Mild TBI | Mild complicated TBI | Moderate TBI | Severe TBI |
|---|---|---|---|---|---|
| Demographic characteristics | |||||
| n | 33 | 53 | 13 | 22 | 10 |
| Male, n (%) | 20 (60.61) | 40 (75.47) | 8 (61.54) | 13 (59.10) | 7 (70.00) |
| Time between injury and MRI (days), M (SD) | 38.77 (21.84) | 37.62 (17.91) | 38.33 (19.34) | 57.31 (30.93) | |
| Age at 6-month assessment, M (SD) | 9.94 (2.95) | 11.25 (2.33) | 10.19 (2.46) | 11.08 (2.34) | 10.55 (3.30) |
| Age at 24-month assessment, M (SD) | 11.35 (2.88) | 12.62 (2.24) | 11.21 (2.58) | 12.82 (2.40) | 12.59 (3.05) |
| SES, M (SD)a,b | 75.86 (14.35) | 69.20 (20.06) | 56.69 (27.17) | 62.85 (24.65) | 74.84 (20.34) |
| Pre-TBI child adaptive behavior, M (SD) | 97.78 (17.64) | 96.92 (16.31) | 99.10 (10.35) | 97.44 (14.69) | |
| Injury characteristics | |||||
| Age at injury, M (SD) | 10.69 (2.35) | 9.65 (2.45) | 10.37 (2.47) | 10.33 (3.25) | |
| Lowest GCS, M (SD)a | 14.51 (1.07) | 13.85 (1.14) | 11.46 (1.95) | 5.70 (2.26) | |
| Duration of Coma, n (%)a | |||||
| None | 28 (53) | 3 (23) | 6 (27) | 1 (10) | |
| <5 min | 17 (32) | 8 (62) | 14 (64) | 4 (40) | |
| >5 min <24 h | 3 (6) | 0 (0) | 0 (0) | 1 (10) | |
| >24 h | 0 (0) | 0 (0) | 0 (0) | 4 (40) | |
| Unknown | 5 (9) | 2 (15) | 2 (9) | 0 (0) | |
| Surgical intervention, n (%) | 0 (0) | 0 (0) | 7 (32) | 6 (60) | |
| Cause of injury, n (%)a | |||||
| MVA (passenger, cyclist, pedestrian) | 3 (6) | 2 (15) | 9 (41) | 5 (50) | |
| Fall/Blow | 50 (94) | 11 (85) | 13 (59) | 5 (50) | |
aStatistically significant difference between groups, P < 0.05.
bSES is based on the ANZSCO. The scale ranges from 0 to 100 with higher scores reflecting higher occupational status of the primary caregiver.