Table 2.

Data for Levels of Trauma Center, for Patients with Length of Stay ≥2 Days

Level of TC	Charges, $	Payments, $	Total estimated cost, $	Margin, $	Response and verification costs, $	Total cost per patient, $	ISS	LOS, d	ICU days	Ventilator days	Age, y	Male, %	Mortality, %
I (n = 1,177)
Mean	85,353	20,577	23,241	(2,665)	1,492	24,733	14.5	9.6	4.0	2.6	45.0	70.8	3.0
SD	131,480	41,083	29,164	30,925	647	29,811	10.1	12.3	8.3	8.1	18.8
Median	47,782	8,385	13,712	(3,640)	1,689	15,401	12.0	5.9	1.0	0.0	43.0
II (n = 2,313)
Mean	54,251	14,882	13,515	1,368	1,492	15,007	9.6	6.8	2.7	1.2	56.0	53.6	1.7
SD	60,622	27,782	15,296	22,263	647	15,943	7.4	6.5	5.1	3.8	22.2
Median	34,254	7,837	8,555	22	1,689	10,244	9.0	4.7	0.0	0.0	57.0
III and IV (n = 1,950)
Mean	30,420	7,784	10,719	(2,935)	636	11,355	7.1	5.0	0.9	0.3	60.8	43.9	1.6
SD	32,403	11,412	11,827	11,870	431	12,258	5.2	3.8	2.8	2.0	21.9
Median	23,752	6,584	8,115	(1,147)	450	8,565	5.0	3.9	0.0	0.0	63.0

ISS, Injury Severity Score; LOS, length of stay; TC, trauma center.