Mortality in severely injured elderly patients: a retrospective analysis of a German level 1 trauma center (2002–2011)

Table 7 Significant differences between decedents and survivors divided by ISS

ISS		Decedents	Survivors	p value
16-25	Patients	28	39
	GCS	5 (3 - 10)	12 (9 - 15)	= 0.002
	RTS	5.4 (4.3 – 6.6)	6.7 (5.9 – 7.4)	= 0.028
	ISS	25 (25 - 25)	18 (17 - 24)	< 0.001
	TRISS	0.5 (0.4 – 0.7)	0.8 (0.7 – 0.9)	= 0,003
	RISC	63.7 (54.5 – 73.0)	31.4 (23.4 – 39.4)	< 0.001
	PTT (sec)	43.6 (24.1 – 63.0)	27.2 (23.7 – 30.8)	= 0.012
	Prothrombin value (%)	59.1 (46.7 – 71.5)	82.9 (72.7 – 93.1)	= 0.004
	AIS head	5 (4 - 5)	4 (3 - 4)	= 0.006
	Intubation at AS	78.6%	36.8%	= 0.001
	Mortality proportion	40%
	RISC overall	44.9
26-35	Patients	20	3
	GCS	6 (3 - 8)	14 (13 - 14)	= 0.003
	AIS Thorax	0 (0 - 2)	3 (2 - 3)	= 0.042
	Male	25%	100%	= 0.030
	Mortality proportion	87%
	RISC overall	62.5
36-45	Patients	5	3
	Mortality proportion	62.5%
	RISC overall	64.5
> 45	Patients	9	1
	Mortality proportion	90%
	RISC overall	93.8

Categorical variables are presented as median with the interquartile range in parentheses, continuous variables as means with the 95% confidence interval in parentheses, and incidences as percentages; GCS, Glasgow Coma Scale; RTS, Revised Trauma Score; ISS, Injury Severity Score; TRISS, Trauma and Injury Severity Score; RISC, Revised Injury Severity Classification; PTT, Partial Thromboplastin time; AS, Accident scene; AIS, Abbreviated Injury Scale.