Table 4.

Outcomes according to specific subgroups

	Obs. surv.	TRISS	TRAIS	p value
Blunt injury (n = 17)	0.366	0.443	0.077	0.077
SBP <90 mmHg (n = 67)	0.433	0.309	0.124	0.008
SBP ≥90 mmHg (n = 30)	0.600	0.610	−0.009	0.900
GCS <8 (n = 53)	0.226	0.170	0.057	0.320
GCS ≥9 (n = 44)	0.795	0.681	0.114	0.004
RT (+) (n = 61)	0.328	0.293	−0.004	0.485
CT (+) (n = 13)	0.538	0.360	0.178	0.231
PP (+) (n = 17)	0.294	0.276	0.018	0.866
DCS (+) (n = 57)	0.614	0.423	0.191	0.001

SBP systolic blood pressure, GCS Glasgow coma scale, RT resuscitative thoracotomy, CT clamshell thoracotomy, PP pelvic packing, DCS damage control surgery, TRISS Trauma and injury Severity Score, TRAIS TRISS adjusted increment in survivability, Obs. Surv. observed survival