Demographic data | | | | |
Mean (SD) age (y) | 32.9 (12.6) | 33.4 (11.8) | t[624]=0.55 | 0.542 |
Sex (% men) | 70.2 | 64.1 | χ2[1]=2.58 | 0.108 |
Marital status (% married) | 37.5 | 38.1 | χ2[1]=0.02 | 0.896 |
Employment (% employed) | 86.4 | 90.2 | χ2[1]=1.55 | 0.213 |
History of major medical illness (% positive) | 37.2 | 42.9 | χ2[1]=1.76 | 0.185 |
Injury data | | | | |
Mechanism of injury (% MVA verses other causes) | 56.6 | 36.9 | χ2[1]=24.1 | <0.000 |
Admission to hospital (% yes) | 51.8 | 24.0 | χ2[1]=51.6 | <0.000 |
Additional major injury (% present) | 52.6 | 24.9 | χ2[1]=50.0 | <0.000 |
TBI data | | | | |
Loss of consciousness, | | | | |
% altered level only | 45.3 | 71.9 | χ2[2]=36.7 | <0.000 |
% definite LOC | 54.7 | 28.1 | | |
Glasgow Coma Score, median (range) | 15.0 (2.0) | 15.0 (2.0) | 31720.5* | 0.001 |
GCS score, | | | | |
% 13.0 | 4.0 | 2.8 | χ2[2]=12.4 | 0.002 |
% 14.0 | 17.9 | 8.2 | | |
% 15.0 | 78.1 | 89.0 | | |
PTA duration, | | | | |
% <1 hour | 69.8 | 90.0 | χ2[1]=30.5 | <0.000 |
% ≥1 hour | 30.2 | 10.0 | | |
Brain CT scan (% positive) | 35.6 | 15.7 | χ2[1]=12.6 | <0.000 |