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Table 1 Demographic variables, injury severity, mechanism of injury, and associated injuries

From: Brain biomarkers and pre-injury cognition are associated with long-term cognitive outcome in children with traumatic brain injury

Characteristic

Full Sample (n = 85)

Participants (n = 23)

Age at injury in years; mean (SD)

10.54 (4.7)

Range: 0.0–17.9

10.95 (3.7)

Range: 2.8–15.4

Male; n (%)

64 (75.3)

14 (60.9)

GCS; median (IQR)

10 (9)

9 (9)

Mild; n (%)

30 (35.3)

10 (43.5)

Moderate; n (%)

21 (24.7)

4 (17.4)

Severe; n (%)

34 (40.0)

9 (39.1)

Intubated; n (%)

52 (60.5)

13 (56.5)

PIFOS Total Score

5.86 (9.8)

4.59 (5.8)

PIFOS Cognition Score

2.29 (4.6)

1.50 (2.5)

Mechanism of Injury

n (%)

n (%)

 Motor vehicle collision

39 (45.9)

11 (47.8)

 Bicycle

14 (16.5)

0 (0)*

 Fall

16 (18.8)

5 (21.7)

 Sport

7 (8.2)

5 (21.7)*

 Other

9 (10.6)

2 (8.7)

CT Findings

n (%)

n (%)

 Subdural hematoma

46 (54.1)

11 (47.8)

 Epidural hematoma

11 (12.9)

3 (13.0)

 Subarachnoid hemorrhage

28 (32.9)

9 (39.1)

 Midline shift

13 (15.3)

3 (13.0)

 Skull fracture

48 (56.5)

10 (43.5)

Other injuries

n (%)

n (%)

 Spine fracture

6 (7.0)

2 (8.7)

 Spinal cord injury

3 (3.5)

2 (8.7)

 Cardiovascular injury

3 (3.5)

2 (7.1)

 Thoracic injury

18 (20.9)

6 (26.1)

 Abdominal injury

2 (2.3)

1 (4.3)

 Genital-urinal injury

2 (2.3)

1 (4.3)

 Major fractures

28 (32.6)

8 (34.8)

 Peripheral injury

2 (2.3)

0 (0.0)

  1. SD standard deviation, IQR interquartile range. Independent t-tests, for continuous demographic variables, and Chi-square analyses, for categorical demographic variables, were performed on those included and excluded from the study. *p < .05