Rationalizing whole-body computed tomography in trauma: A national audit on resource utilization and strategies to minimize radiation exposure

Table 2 Mechanism of injury and whole-body computed tomography indications - rate of positive and negative scans, n (%)

Mechanism of injury	Total cases (n = 1367)	Negative scan (n = 578)	Positive scan (n = 789)	P value1
RTA	911 (66.6)	405 (70.1)	506 (64.1)	0.376
FFH	182 (13.6)	42 (6.7)	140 (17.7)	< 0.001
Fall (fall of heavy object)	112 (8.0)	54 (9.0)	58 (7.4)	0.396
Boat accident	5 (0.4)	3 (0.5)	2 (0.3)	1.00
Buggy accident	28 (2.0)	15 (2.6)	13 (1.6)	0.563
Blast injury	2 (0.1)	0 (0.0)	2 (0.3)	1.00
Head trauma	82 (6.0)	39 (6.7)	43 (5.4)	0.264
Loss of consciousness	3 (0.2)	1 (0.2)	2 (0.3)	1.00
[Consequence of an injury]
Not mentioned	12 (0.9)	7 (1.2)	5 (0.6)	0.705
Poly trauma	4 (0.3)	2 (0.3)	2 (0.3)	1.00
Assault	24 (1.8)	9 (1.6)	15 (1.9)	0.965
Self-inflicted injury (gunshot)	2 (0.15)	1 (0.2)	1 (0.1)	1.00

¹χ² test.

FFH: Fall from height; RTA: Road traffic accident.