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Table 1 Baseline characteristics and diagnostic data of the study population

From: Impact on survival of whole-body computed tomography before emergency bleeding control in patients with severe blunt trauma

 

Total

(n= 152)

CT group(n= 132)

Non-CT group(n= 20)

P- value

Baseline characteristics

    

   Age, yrs

40 (25 to 61)

40 (26 to 61)

42 (23 to 64)

n.s.

   Male sex, %

99 (65.1)

86 (65)

13 (65)

n.s.

Emergency department variables

    

   Systolic blood pressure, mmHg

93.5 (70 to 122)

99 (80 to 128)

62 (50 to 74)

<0.001

   Heart rate, bpm

101 (83 to 124)

98 (82 to 122)

105 (100 to 132)

n.s.

   Respiratory rate, bpm

23 (20 to 30)

23 (20 to 30)

20 (20 to 28)

n.s.

   Revised Trauma Score

6.9 (5.3 to 7.8)

7.0 (6.3 to 7.8)

4.3 (3.2 to 5.6)

<0.001

   Base excess, mmol/L

-5.0 (-8 to -1.8)

-4.0 (-7.6 to -1.4)

-9.7 (-13 to -7.4)

<0.001

   Lactate, mmol/L

3.9 (2.5 to 7.0)

3.5 (2.4 to 6.0)

8.1 (6.0 to 8.8)

<0.001

In-hospital variables

    

   Body temperature, °C

35.2 (34.5 to 35.8)

35.2 (34.5 to 35.8)

34.7 (34 to 35.6)

n.s.

   Prothrombin time, %

50 (34.2 to 65)

50 (35.5 to 67.2)

40 (32.7 to 60.2)

n.s.

   Infusion within 24 hrs, ml

11,000 (8,625 to 16,000)

14,000 (9,000 to 16,000)

10,500 (7,750 to 15,250)

n.s.

   Blood transfusion within 24 hrs, units

14 (6 to 25.5)

18 (9.0 to 31)

23 (16 to 44)

0.001

   FFP transfusion within 24 hrs, units

3.0 (0 to 10)

0.0 (0 to 10)

8.0 (3.0 to 13)

0.045

Bleeding control site

    

   Chest

21 (13.8)

15 (11.3)

6 (30)

n.s.

   Abdomen

93 (61.1)

78 (59)

15 (75)

n.s.

   Pelvic

70 (46)

60 (45.4)

10 (50)

n.s.

Time from patient arrival to start of emergency bleeding control, minutes

79 (55 to 105)

84 (67 to 121)

74 (63 to 114)

<0.001

Injury Severity Score

34 (25 to 45)

34 (25 to 43)

41 (34 to 51)

0.033

TRISS Ps, %

80 (39.1 to 95.1)

84.5 (56.5 to 95.5)

22.2 (7.9 to 39.2)

<0.001

Outcome variables

    

   24-hr mortality, %

39 (25.6)

23 (17.4)

16 (80)

<0.001

   28-d mortality, %

40 (26.3)

24 (18.1)

16 (80)

<0.001

  1. Data are expressed as group medians with interquartile ranges or number (percent). bpm, beats per minute; CT, computed tomography; FFP, fresh frozen plasma; n.s., not significant; Ps, probability of survival; TRISS, Trauma and Injury Severity Score.