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Table 3 Patient characteristics

From: Effect of an organizational change in a prehospital trauma care protocol and trauma transport directive in a large urban city: a before and after study

Variables

2006 n = 310 (%)

2008 n = 383 (%)

p-value* sign

Gender

  

0.938

 Male

225 (72.6)

279 (72.8)

 

 Female

85 (27.4)

104 (27.2)

 

Age

50 (30–66)

45 (28–69)

0.514

Injury Severity Score (ISS)

20 (17–26)

24 (18–30)

<0.001*

Hospital length of stay (LOS)

6.9 (1.5–16.4)

7.7 (2.8–17.7)

0.137

Total prehospital time

40 (29–51)

42 (32–53)

0.085

Prehospital on-scene time

16 (11–25)

17 (12–24)

0.996

Predominant type of injury

  

0.221

 Blunt

290 (93.9)

350 (91.4)

 

 Penetrating

19 (6.1)

33 (8.6)

 

 Missing

1 (0.3)

  

Injury mechanism

  

0.754

 Traffic

127 (41.1)

152 (39.8)

 

 Low-energy fall

65 (21.0)

71 (18.6)

 

 High-energy fall

70(22.7)

95 (24.9)

 

 Other

47 (15.2)

64 (16.8)

 

 Missing

1 (0.3)

1 (0.2)

 

Type of injury

  

0.859

 Accident

257 (84.3)

316(83.2)

 

 Self-inflicted

19 (6.2)

23 (6.1)

 

 Assault

29 (9.5)

41 (10.8)

 

 Missing

5 (1,6)

3 (0.8)

 

Prehospital priority

  

0.925

 Priority 1

253 (84.1)

310 (83.8)

 

 Priority > 1

48 (15.9)

60 (16.2)

 

 Missing

9 (2.9)

13 (3.4)

 

Systolic blood pressure RTS category,

  

0.954

 Systolic blood pressure RTS 4

242 (80.1)

292 (78.1)

 

 Systolic blood pressure RTS 0–3

60 (19.9)

82 (21.9)

 

 Missing

19 (6.1)

17 (4.4)

 

Respiratory rate RTS category

  

0.241

 Respiratory rate RTS 4

247 (84.3)

311 (85.7)

 

 Respiratory rate RTS 0–3

46 (15.7)

52 (14.3)

 

 Missing

17 (5.5)

20 (5.2)

 

Glasgow Coma Scale RTS category

  

0.514

 Glasgow Coma Scale RTS 3–4

246 (84.5)

310 (84.7)

 

 Glasgow Coma Scale RTS 0–2

45 (15.5)

56 (15.3)

 

 Missing

8 (2.5)

9 (2.3)

 

Prehospital cardiac arrest (yes)

8 (2.6)

15 (3.9)

0.336

 Missing

5 (1.6)

4 (1.0)

 

30-day mortality (dead)

57 (19.1)

68 (18.1)

0.742

 Missing

17 (4.9)

2 (0.5)

 
  1. Categorical values presented with crude numbers and percent and continuous variables with median and IQR
  2. * p < 0.05