Trauma management incorporating focused assessment with computed tomography in trauma (FACTT) - potential effect on survival

Table 2 Differences between LMU and DGU trauma centres regarding time and survival.

Group	LMU	DGU
Number	160	4.657
Characteristic	n or % [95%CI] or mean ± SD	n or % [95%CI] or mean ± SD
*Diagnostics*
*FAST*
N	125/160	2.676/4.657
%	78.1	57.5
Time (min)	4.3 ± 3.3	8.7 ± 14.1
p-value¹	<0.001
*Chest x-ray*
N	111/160	2.464/4.657
%	69.4	52.9
Time (min)	8.1 ± 4.0	16.0 ± 19.9
p-value¹	<0.001
*WBCT*
N	138/160	1.223/4.657
%	86.3	26.3
Time (min)	20.7 ± 17.6	36.3 ± 28.3
p-value¹	<0.001
Outcome
*TRISS*
N	95/160	2.246/4.657
%	59.3 [95%CI 51.8-67.0]	48.2 [95%CI 46.8-49.7]
Observed mortality n	15/95	404/2246
Observed mortality rate %	15.8 [95%CI 8.5-23.1]	18.0 [95%CI 16.4-19.6]
Expected mortality rate by TRISS (%)	21.4	19.5
SMR	0.74 [95%CI 0.40-1.08]	0.92 [95%CI 0.84-1.01]
p-value²	0.24	0.10
*RISC*
N	157 (160)	4.115/4.657
%	98.1 [95%CI 96.0-100.0]	88.4 [95%CI 87.4-89.3]
Observed mortality n	30/157	878/4115
Observed mortality rate %	19.1 [95%CI 13.0-25.3 ]	21.3 [95%CI 20.1-22.6]
Expected mortality rate by RISC %	27.6	21.4
SMR	0.69 [95%CI 0.47-0.92]	0.995 [95%CI 0.94-1.06]
p-value²	0.043	0.88

We analyzed 4.817 patients, comparing 160 patients from our university hospital (LMU) to 4.657 trauma patients from other trauma centres (DGU) participating in the registry. FAST Focused Assessment with Sonography in Trauma; WBCT whole-body Computed Tomography; TRISS Trauma Revise Injury Severity Score; RISC Revised Injury Severity Classification; SMR Standard Mortality Ratio. p: χ² test or Mann- Withney- U test (two sided); p¹ refers to the difference between LMU and the other hospitals; p² refers to the difference between expected and observed mortality.

ISSN: 1752-2897