Table 3.

Multivariable logistic regression analysis for inhospital mortality of patients with trauma

	All patients, n=90833		Patients with ISS >16, n=35226		Patients with TRISS probability of survival ≥0.5, n=83953
	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value
Age	1.04 (1.04 to 1.04)	<0.001	1.04 (1.03 to 1.04)	<0.001	1.05 (1.05 to 1.05)	<0.001
Gender
Male	1.24 (1.16 to 1.33)	<0.001	1.13 (1.04 to 1.21)	0.002	1.42 (1.31 to 1.54)	<0.001
Mechanism of injury
Penetrating	1.00	–	1.00	–	1.00	–
Blunt	1.82 (1.46 to 2.27)	<0.001	1.26 (0.93 to 1.72)	0.14	1.36 (1.01 to 1.84)	0.04
ISS	1.06 (1.06 to 1.06)	<0.001	1.05 (1.04 to 1.05)	<0.001	1.09 (1.08 to 1.09)	<0.001
GCS	0.72 (0.71 to 0.72)	<0.001	0.73 (0.73 to 0.74)	<0.001	0.72 (0.71 to 0.73)	<0.001
Systolic blood pressure	0.99 (0.99 to 0.99)	<0.001	0.99 (0.99 to 0.99)	<0.001	0.99 (0.99 to 1.00)	<0.001
Respiratory rate	1.01 (1.00 to 1.01)	0.003	1.00 (1.00 to 1.01)	0.06	1.03 (1.03 to 1.04)	<0.001
Year
2004	1.58 (1.32 to 1.91)	<0.001	1.55 (1.26 to 1.91)	<0.001	1.60 (1.28 to 1.99)	<0.001
2005	1.53 (1.27 to 1.82)	<0.001	1.56 (1.28 to 1.91)	<0.001	1.38 (1.12 to 1.71)	<0.001
2006	1.25 (1.04 to 1.49)	0.01	1.24 (1.01 to 1.52)	0.04	1.04 (0.83 to 1.31)	0.41
2007	1.08 (0.94 to 1.23)	0.42	1.09 (0.93 to 1.28)	0.49	1.02 (0.87 to 1.21)	0.33
2008	1.07 (0.94 to 1.21)	0.48	1.11 (0.96 to 1.29)	0.28	0.95 (0.81 to 1.11)	0.83
2009	1.00	–	1.00	–	1.00	–
2010	0.90 (0.80 to 1.02)	0.002	0.95 (0.83 to 1.09)	0.03	0.86 (0.75 to 0.99)	0.03
2011	0.79 (0.70 to 0.89)	<0.001	0.84 (0.73 to 0.96)	<0.001	0.76 (0.66 to 0.87)	<0.001
2012	0.79 (0.70 to 0.88)	<0.001	0.81 (0.71 to 0.92)	<0.001	0.74 (0.64 to 0.84)	<0.001
2013	0.69 (0.61 to 0.79)	<0.001	0.70 (0.60 to 0.81)	<0.001	0.63 (0.54 to 0.73)	<0.001

GCS, Glasgow Coma Scale; ISS, Injury Severity Score.