Table 3.

Univariable Analysis for Factors Associated with the Survival Rate of Traffic Accident Patients Transported by EMS

Factors	Alive (n = 314)		Dead (n = 26)		OR	95% CI	p-value
Gender
Male	223	(71.0)	19	(73.1)	1.00	Reference
Female	91	(29.0)	7	(26.9)	1.11	(0.45–2.73)	0.824
Age (years), mean ± (SD)	37.33 ± 16.99		33.85 ± 17.00		1.01	(0.99–1.04)	0.317
Prehospital systolic blood pressure (mmHg)
≤90	19	(6.1)	13	(50.0)	1.00	Reference
>90	295	(93.9)	13	(50.0)	15.53	(6.33–38.11)	<0.001
Prehospital heart rate (bpm)
≤100	213	(67.8)	14	(53.8)	1.00	Reference
>100	101	(32.2)	12	(46.2)	0.55	(0.25–1.24)	0.150
Prehospital oxygen saturation on room air
≤94%	52	(16.6)	15	(57.7)	1.00	Reference
>94%	262	(83.4)	11	(42.3)	6.87	(2.99–15.8)	<0.001
Level of consciousness
Responsive	293	(93.3)	9	(34.6)	1.00	Reference
Unresponsive	21	(6.7)	17	(65.4)	0.04	(0.02–0.10)	<0.001
Wounds
No	29	(9.2)	3	(11.5)	1.00	Reference
Yes	285	(90.8)	23	(88.5)	1.28	(0.36–4.53)	0.700
Orthopedic injuries
No	141	(44.9)	12	(46.2)	1.00	Reference
Yes	173	(55.1)	14	(53.8)	1.05	(0.47–2.35)	0.902
Hemorrhage
No	193	(61.5)	14	(53.8)	1.00	Reference
Yes	121	(38.5)	12	(46.2)	0.73	(0.33–1.63)	0.446
Body part injured
Extremity	209	(66.6)	17	(65.4)	1.05	(0.45–2.44)	0.903
Head/neck	170	(54.1)	16	(61.5)	0.74	(0.33–1.68)	0.468
Face	92	(29.3)	15	(57.7)	0.30	(0.14–0.69)	0.004
Chest/clavicle	37	(11.8)	6	(23.1)	0.45	(0.17–1.18)	0.104
External body surface	27	(8.6)	2	(7.7)	1.13	(0.25–5.04)	0.874
Pelvis	27	(8.6)	2	(7.7)	1.13	(0.25–5.04)	0.874
Multiple injuries	24	(7.6)	3	(11.5)	0.63	(0.18–2.27)	0.484
Abdomen	22	(7.0)	2	(7.7)	0.90	(0.2–4.08)	0.896
Spine	18	(5.7)	2	(7.7)	0.73	(0.16–3.33)	0.684

Abbreviations: bpm, beats per minute; OR, odds ratio; CI, confidence interval; NA, data not applicable.