Table 1.

Baseline patient demographics and injury severity characteristics by hospital mortality classification.

Characteristic	Low Mortality 283,625 patients 86 TCs	Intermediate Mortality 19,251 patients 6 TCs	High Mortality 253,844 patients 89 TCs	p value
All patients, %	51.0	3.5	45.6
Percent mortality	6.4	7.8	8.5	<0.001
Mean age in years	51	52	47	<0.001
Percent males	63.2	61.5	69.0	<0.001
Race
White	80.8	71.4	65.2	<0.001
Black	9.9	20.7	21.9
Hispanic	9.4	8.0	12.9
Type of injury
Blunt	92.8	91.0	86.2	<0.001
Penetrating	7.2	9.0	13.8
Hypotensive on arrival (systolic blood pressure <90 mmHg)	4.6	4.5	6.3	<0.001
Total Glasgow Coma Scale
3	9.9	11.4	9.5	<0.001
4–8	2.3	2.0	3.5
9–12	2.7	2.5	3.5
13–15	85.2	84.0	83.5
Injury Severity Score
9–15	56.6	59.5	57.5	<0.001
16–24	25.5	24.9	25.3
25–75	17.9	15.6	17.3
Head Abbreviated Injury Scale ≥3	32.7	29.8	32.2	<0.001

Note: p value is for comparing, both low mortality to intermediate and then low mortality to high mortality facilities for each group.