Impact of whole-body computed tomography on mortality and surgical management of severe blunt trauma

Table 1 Baseline characteristics of patients according to the extent of computed tomography

	Selective CT (n= 254)		Whole-body CT (n= 1,696)		P value	P value adjusted for propensity score
	Number	Percentage	Number	Percentage
Age					< 0.001	0.59
< 25 years	56	22.0%	450	26.5%
25 to less than 50 years	99	39.0%	797	47.0%
≥ 50 years	99	39.0%	449	26.5%
Sex					0.33	0.95
Women	68	26.8%	406	23.9%
Men	186	73.2%	1,290	76.1%
Initial systolic blood pressure					0.06	0.91
< 90 mm Hg	24	9.8%	226	13.4%
90 to less than 110 mm Hg	35	14.3%	306	18.2%
≥ 110 mm Hg	186	75.9%	1,151	68.4%
Accident severity					< 0.001	0.07
Not severe	152	61.3%	487	29.5%
Severe	96	38.7%	1,162	70.5%
Road traffic accident					< 0.001	0.16
No	145	57.1%	560	33.0%
Yes	109	42.9%	1,136	67.0%
Hospital admission delay					0.04	0.90
< 1 hour	37	14.6%	198	11.7%
1 to less than 3 hours	171	67.3%	1,267	74.7%
≥ 3 hours	46	18.1%	231	13.6%
Pre-hospital management					< 0.001	0.78
Non-MICU	37	14.6%	32	1.9%
MICU	217	85.4%	1,664	98.1%
Initial heart rate					< 0.001	0.39
≤ 50 beats per minute	20	7.9%	96	5.7%
50 to less than 120 beats per minute	223	87.8%	1,333	78.6%
≥ 120 beats per minute	11	4.3%	267	15.7%
Pre-hospital fluid loading					< 0.001	0.56
No	97	39.4%	265	15.9%
Yes	149	60.6%	1,401	84.1%
Pre-hospital intubation					< 0.001	0.97
No	156	61.7%	779	46.2%
Yes	97	38.3%	906	53.8%
Pre-hospital catecholamine administration					0.07	0.81
No	230	91.6%	1,474	87.7%
Yes	21	8.4%	207	12.3%
Study center					< 0.001	0.81
Paris	12	4.7%	449	26.5%
Besançon	14	5.5%	95	5.6%
Dijon	23	9.1%	140	8.3%
Grenoble	39	15.4%	271	16.0%
Lille	26	10.2%	254	15.0%
Lyon	26	10.2%	78	4.6%
Nantes	13	5.1%	70	4.1%
Nîmes	48	18.9%	29	1.7%
Poitiers	15	5.9%	126	7.4%
Limoges	15	5.9%	59	3.5%
Marseille	23	9.1%	125	7.4%

All variables listed in this table were included in the propensity score along with other variables not associated with whole-body computed tomography (CT) or selective CT: Glasgow Coma Scale score, suspected trauma severity, blood products, ventilation, day/night, accident time, weekend/other days, pre-hospital cardiac arrest, hemoglobin, and prothrombin ratio. MICU, mobile intensive care unit.

ISSN: 1364-8535