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Table 3 Univariate analysis of risk factors for OM at the arrival of patient at the ED

From: The World Society of Emergency Surgery (WSES) spleen trauma classification: a useful tool in the management of splenic trauma

Variable

Mean ± SD Median (range)

p value

NOM

OM

Age < 55 years

42.3%

57.7%

n.s.

Age > 55 years

50.0%

50.0%

Age (years)

50.54 ± 18.17

49.87 ± 18.73

n.s.

49.35 (18.00–91.00)

48.00 (17.00–85.60)

No anticoagulant/antiplatelet drugs

48.8%

51.2%

n.s.

Anticoagulant/antiplatelet drugs

40.0%

60.0%

HR (mean ± SD)

85.95 ± 18.66

95.24 ± 21.07

0.009

Median (range) (bpm)

80.00 (48.00–133.00)

95.00 (55.00–145.00)

HR < 120 bpm

58.7%

41.3%

n.s.

HR > 120 bpm

46.8%

53.2%

SBP(mmHg)

120.40 ± 21.35

106.51 ± 26.92

0.002

120.00 (70.00–170.00)

105.00 (53.00–167.00)

SBP > 90 mmHg

60.4%

39.6%

0.001

SBP < 90 mmHg

21.7%

78.3%

Shock index < 1

60.2%

39.8%

0.002

Shock index > 1

26.9%

73.1%

AAST 1

100.0%

0.0%

< 0.001

AAST 2

81.3%

18.7%

AAST 3

44.1%

55.9%

AAST 4

26.7%

73.3%

AAST 5

0.0%

100.0%

AAST ≤ 3

66.7%

33.3%

< 0.001

AAST > 3

22.9%

77.1%

WSES I

86.4%

13.6%

< 0.001

WSES II

44.4%

55.6%

WSES III

44.4%

55.6%

WSES IV

20.0%

80.0%

WSES I-II-III

63.8%

36.2%

< 0.001

WSES IV

20.0%

80.0%

ISS

24.38 ± 12.68

32.05 ± 12.27

< 0.001

22.00 (5.00–75.00)

29.00 (9.00–66.00)

ISS < 25

72.0%

28.0%

0.001

ISS > 25

40.9%

59.1%

Lac

3.01 ± 1.90

3.51 ± 1.85

n.s.

2.66 (0.80–9.24)

3.08 (1.30–8.00)

BE (mmol/L)

− 3.34 ± 3.82

− 3.06 ± 2.88

n.s.

− 2.80 (− 14.50–2.10)

− 2.90 (− 9.50–1.80)

pH

7.32 ± 0.07

7.28 ± 0.16

n.s.

7.34 (7.13–7.43)

7.29 (6.80–7.47)

Hb (g/dL)

13.31 ± 2.33

11.39 ± 2.63

< 0.001

13.60 (5.60–16.80)

11.70 (3.30–16.40)

Hb > 12 g/dL

66.7%

33.3%

0.001

Hb ≤ 12 g/dL

37.9%

62.1%

BE > − 5 mmol/L

57.7%

42.3%

n.s.

BE < − 5 mmol/L

66.7%

33.3%

Brain injuries

41.7%

58.3%

n.s.

No brain injuries

56.0%

44.0%

Associated abdominal lesions

44.8%

55.2%

n.s.

No associated abdominal lesions

60.6%

39.4%

Trauma mechanism of injury

  

n.s.

 -Invested pedestrian

72.7%

27.3%

 -Car

44.7%

55.3%

 -Motorbike

56.4%

43.6%

 -Bike

60.0%

40.0%

 -Precipitation

52.9%

47.1%

 -Others

50.0%

50.0%

Contrast blush

42.4%

57.6%

0.010

No contrast blush

68.9%

31.1%

Pseudoaneurysm

50.0%

50.0%

n.s.

No pseudoaneurysm

61.4%

38.6%

Hemoperitoneum at TC

54.4%

45.6%

n.s.

Number of quadrants with hemoperitoneum

 - > 1

42.0%

58.0%

< 0.001

 - ≤ 1

69.4%

30.6%

INR (s)

1.12 ± 0.15

1.69 ± 1.11

0.001

1.15 (0.66–1.38)

1.23 (1.04–5.05)

INR > 1.5 s

23.5%

76.5%

0.014

INR < 1.5 s

55.7%

44.3%

Fibrinogen (mg/dL)

215.52 ± 53.98

168.23 ± 67.51

0.020

205.00 (156.0–491.00)

173.00 (26.00–260.00)

Fibrinogen ≤ 200 mg/dL

38.1%

61.9%

0.031

Fibrinogen > 200 mg/dL

60.4%

39.6%

PLT/mm3

217.38 ± 49.76

198.29 ± 83.93

n.s.

220.00 (137.00–315.00)

190.00 (156.00–401.00)

Positive eco-fast

33.9%

66.1%

< 0.001

Negative eco-fast

72.7%

27.3%

RBC transfusion at the ED

34.6%

65.4%

0.032

No RBC transfusion at the ED

58.2%

41.8%

  1. ISS Injury Severity Score, HR heart rate, SBP systolic blood pressure, ED emergency department, BE base excess, Lac lactates, Hb hemoglobin, RBC red blood cell, AAST American Association for the Surgery of Trauma, WSES World Society of Emergency Surgery, PLT platelet, INR International Normalized Ratio