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Table 1 Patient characteristics and accident circumstances of patients with severe blunt trauma according to mode of transport.

From: Impact of emergency medical helicopter transport directly to a university hospital trauma center on mortality of severe blunt trauma patients until discharge

  

Transport modality, number (%)

 
 

All patients,

number (%)

number = 1,958

HMICU

number (%)

number = 516

GMICU

number (%)

number = 1,442

P

Age (years)

    

median (IQR)

mean (SD)

37.0 (24.9 to 52.8)

40.6 (18.0)

39.2 (25.1 to 52.9)

40.9 (16.9)

36.0 (24.8 to 52.8)

40.6 (18.4)

0.33*

Sex

    

men

1,483 (75.7)

395 (76.5)

1,088 (75.5)

0.62

women

475 (24.3)

121 (23.5)

354 (24.5)

 

Accident severity a

    

Yes

1,278 (67.2)

317(63.9)

961 (68.3)

0.073

No

680 (32.8)

199 (36.1)

481 (31.7)

 

Suspected trauma severity b

    

yes

994 (50.8)

286 (55.4)

708 (49.1)

0.014

no

964 (49.2)

230 (44.6)

734 (50.9)

 

Accident time

    

8:00 am to 6:30 pm

1,399 (72.5)

450 (87.7)

949 (67.0)

<0.001

Accident day

    

week

1,366 (70.8)

336 (65.5)

1,030 (72.7)

0.002

weekend

563 (29.2)

177 (34.5)

386 (27.3)

 

Time to hospital admission (hours)

number = 1,879

number = 507

number = 1,372

 

median (IQR)

1.9 (1.4 to 2.5)

2.3 (1.8 to 3.0)

1.8 (1.3 to 2.3)

<0.001*

mean (SD)

2.4 (5.0)

3.1 (8.1)

2.1 (3.2)

 
  1. aAccident severity was defined if at least one of the following criteria was present: pedestrian; no safety equipment (air bag, seat belt, crash helmet, and so on); high velocity; victim ejected/crushed/burned/or cut free from the vehicle; death of another person in the same vehicle; fall of more than six meters. bTrauma severity was suspected if at least one of the following criteria was present: suspicion of skull fracture, pelvic fracture, flail chest, spine injury, limb amputation, severe burns, smoke inhalation, mydriasis. (*) Wilcoxon Test. GMICU, ground transport of mobile intensive care unit; HMICU, helicopter transport of mobile intensive care unit.