Table 3.

Adjusted Odds (95% Confidence Interval) of Mortality at Discharge among Older Adults Treated for Isolated Traumatic Brain Injury at a Level 1 Trauma Center 1996–2012, n=1,320

	Odds Ratio (95% CI)
Female sex	1.01 (0.66, 1.54)
Age	1.07 (1.04, 1.10)
AIS1 head score
1	Reference
2	4.14 (0.40, 42.87)
3	9.70 (2.25, 41.85)
4	19.86 (5.48, 72.04)
≥5	81.50 (22.27, 298.19)
Glasgow Coma Scale score
14–15	Reference
9–13	2.92 (1.70, 5.03)
<9	21.65 (13.19, 35.56)
Race
White	Reference
Black	1.31 (0.76, 2.24)
Other	0.27 (0.10, 0.77)
Cardiac arrhythmia	2.75 (1.28, 5.94)
Admission systolic blood pressure
< 90 mmHg	Reference
90 – <120 mmHg	0.15 (0.03, 0.66)
120 – <140 mmHg	0.21 (0.05, 0.84)
140 – <160 mmHg	0.14 (0.04, 0.51)
160 –<180 mmHg	0.10 (0.03, 0.40)
≥180 mmHg	0.11 (0.03, 0.43)
Transport to trauma center
Directly from scene	Reference
Transfer from another hospital	0.26 (0.17, 0.42)

¹Abbreviated Injury Scale