Table 1.

Demographics and injury characteristics of patients with and without polytrauma.

Variables	Polytrauma n = 694	Non-polytrauma n = 2104	Odds Ratio (95% CI)	p
Age	46.2 ± 19.9	50.8 ± 22.2	–	<0.001
Sex
Male	479 (69.0)	1385 (65.8)	1.2 (0.96–1.39)	0.122
Female	215 (31.0)	719 (34.2)	0.9 (0.72–1.04)	0.122
Co-morbidity
DM	72 (10.4)	299 (14.2)	0.7 (0.53–0.92)	0.010
HTN	141 (20.3)	551 (26.2)	0.7 (0.58–0.89)	0.002
CAD	19 (2.7)	75 (3.6)	0.8 (0.46–1.27)	0.294
CHF	1 (0.1)	15 (0.7)	0.2 (0.03–1.52)	0.141
CVA	7 (1.0)	102 (4.8)	0.2 (0.09–0.43)	<0.001
ESRD	0 (0.0)	3 (0.1)	–	1.000
GCS	11.5 ± 4.4	11.9 ± 4.2	–	0.028
≤8	195 (28.1)	493 (23.4)	1.3 (1.05–1.55)	0.013
9–12	86 (12.4)	267 (12.7)	1.0 (0.75–1.26)	0.837
≥13	413 (59.5)	1344 (63.9)	0.8 (0.70–0.99)	0.039
AIS, n (%)
Head/Neck	521 (75.1)	1780 (84.6)	0.5 (0.45–0.68)	<0.001
Face	222 (32.0)	453 (21.5)	1.7 (1.42–2.07)	<0.001
Thorax	496 (71.5)	391 (18.6)	11.0 (9.00–13.38)	<0.001
Abdomen	265 (38.2)	184 (8.7)	6.4 (5.20–7.99)	<0.001
Extremity	510 (73.5)	595 (28.3)	7.0 (5.79–8.53)	<0.001
AIS ≥ 3, n (%)
Head/Neck	467 (67.3)	1679 (79.8)	0.5 (0.43–0.63)	<0.001
Face	26 (3.7)	0 (0.0)	–	<0.001
Thorax	459 (66.1)	248 (11.8)	14.6 (11.90–17.95)	<0.001
Abdomen	179 (25.8)	60 (2.9)	11.8 (8.70–16.11)	<0.001
Extremity	347 (50.0)	54 (2.6)	38.0 (27.89–51.68)	<0.001
ISS, median (IQR)	26 (22–34)	17 (16–21)	–	<0.001
16–24	240 (34.6)	1701 (80.8)	0.1 (0.10–0.15)	<0.001
≥25	454 (65.4)	403 (19.2)	8.0 (6.60–9.66)	<0.001
RTS	6.8 ± 1.5	7.0 ± 1.3	–	<0.001
TRISS	0.8 ± 0.25	0.9 ± 0.2	–	<0.001
Mortality, n (%)	79 (11.4)	232 (11.0)	1.0 (0.79–1.36)	0.795
Hospital LOS (days)	20.2 ± 15.9	15.4 ± 15.9	–	<0.001
ICU, n (%)
ISS 16–24	143 (20.6)	1161 (55.2)	0.2 (0.17–0.26)	<0.001
ISS ≥ 25	380 (54.8)	371 (17.6)	5.7 (4.69–6.81)	<0.001
LOS in ICU (days)	7.1 ± 9.8	6.9 ± 12.1	–	0.670