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Table 1 Patient characteristics of the non-SIRS and SIRS groups (continuous values)

From: Development and validation of a machine learning-based model to assess probability of systemic inflammatory response syndrome in patients with severe multiple traumas

 

Non-SIRS = 209

SIRS = 230

Total = 439

Difference in means [95% CI]

P value

Age (years)

47.2 (15.3)

41.9 (15.1)

44.4 (15.4)

-5.4 [-8.2 to -2.6]

0.0003

NISS

26 (9)

29.8 (11.4)

28 (10.5)

3.8 [1.8 to 5.8]

0.0003

Pulse (min)

84.7 (14.6)

100.1 (17.5)

92.8 (17.9)

15.4 [12.2 to 18.6]

< 0.0001

SAP (mmHg)

114.4 (22.3)

101.4 (26.6)

107.6 (25.5)

-13.0 [-17.7 to -8.4]

< 0.0001

DAP (mmHg)

71.4 (15.2)

63.4 (17.8)

67.2 (17.1)

-8.0 [-11.0 to -5.1]

< 0.0001

Respiration Rate (min)

18.7 (2.1)

20.2 (3.1)

19.5 (2.8)

1.5 [1.0 to 1.9]

< 0.0001

RBC (x10¹²/L)

4.2 (0.7)

4.1 (0.8)

4.1 (0.7)

-0.1 [-0.2 to 0.04]

0.3129

Hematocrit (%)

36.2 (6.1)

35.5 (6.9)

35.8 (6.5)

-0.8 [-2.0 to 0.5]

0.3601

Hemoglobin (g/L)

124.3 (21.6)

121.9 (24.7)

123 (23.3)

-2.5 [-6.7 to 1.8]

0.5402

MCH (pg)

29.9 (3.1)

30.1 (3.2)

30 (3.2)

0.2 [-0.4 to 0.8]

0.6961

MCHC (g/L)

343 (15.5)

343.4 (20.8)

343.2 (18.5)

0.5 [-2.8 to 3.7]

0.8127

MCV (fL)

87.1 (8.1)

87.5 (7.5)

87.3 (7.8)

0.4 [-1.2 to 1.9]

0.8168

WBC (x10⁹/L)

14 (6.8)

18.2 (6.5)

16.2 (7)

4.2 [2.9 to 5.4]

< 0.0001

Platelets (x10⁹/L)

239 (85.5)

244.3 (79.1)

241.8 (82.2)

5.3 [-9.9 to 20.5]

0.1906

Total protein (g/L)

64.2 (8.6)

61.4 (8.7)

62.7 (8.8)

-2.8 [-4.4 to -1.2]

0.0010

Total bilirubin (mcmol/L)

13.8 (8.9)

12.1 (7.5)

12.9 (8.3)

-1.8 [-3.2 to -0.4]

0.0081

Glucose (mmol/L)

8 (2.9)

9 (3.7)

8.5 (3.4)

1.0 [0.4 to 1.6]

0.0018

Creatinine (mcmol/L)

83.7 (29.9)

88.6 (27.7)

86.3 (28.8)

4.9 [-0.4 to 10.2]

0.0136

Urea (mmol/L)

5.5 (2.4)

5.5 (2.3)

5.5 (2.4)

0.007 [-0.4 to 0.5]

0.8277

RBC (units)

0.7 (1.5)

1.4 (2.3)

1.1 (2)

0.7 [0.4 to 1.1]

0.0001

Plasma (units)

0.4 (1.6)

1.2 (2.6)

0.9 (2.2)

0.8 [0.4 to 1.2]

0.0001

Fibrinogen (g/L)

2.8 (1.1)

2.5 (1.1)

2.6 (1.1)

-0.3 [-0.5 to -0.1]

0.0022

INR

1.1 (0.2)

1.2 (0.3)

1.1 (0.2)

0.1 [0.02 to 0.1]

0.0324

APTT (s)

27.6 (5)

28.4 (7.7)

28 (6.6)

0.8 [-0.4 to 2.0]

0.9229

First total care (day)

4.9 (5.2)

4.3 (5.1)

4.6 (5.2)

-0.6 [-1.5 to 0.3]

0.0540

LOS in ICU (days)

2.7 (4.3)

5 (6.3)

3.9 (5.6)

2.3 [1.3 to 3.2]

< 0.0001

LOS in Hospital (days)

16 (8.1)

16.9 (10.9)

16.5 (9.7)

0.9 [-0.9 to 2.7]

0.6792

  1. The data are presented as the mean (standard deviation); SAP, systolic arterial pressure; DAP, diastolic arterial pressure; LOS, length of stay; ICU, intensive care unit; INR, international normalized ratio; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration; MCV, mean corpuscular volume; APTT, activated partial thromboplastin time; NISS, new injury severity score