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Table 1 Baseline characteristics

From: Effect of β2-microglobulin in evaluating the severity and prognosis of brain injury: a clinical study

 

Brain injury (n = 54)

Consciousness disorder (n = 32)

Non-consciousness disorder (n = 22)

P value

Median age (years)

47 ± 14

52 ± 14

50 ± 13

0.734

Gender (male = n%)

39 (72%)

27 (84%)

13 (59%)

0.052

Time from onset to surgery

   

0.009

 No surgery

19

5

14

 

 Day 0–1

26

22

4

 

 Day 2

6

4

2

 

 Day 3–4

3

1

2

 

Etiologies of brain injury

 Spontaneous intracerebral hemorrhage

31

23

8

0.010

 Basal ganglia

13

11

2

0.260

 Brain stem

2

0

2

0.013

 Cerebellum

2

2

0

0.389

 Frontal Lobe; Parietal Lobe; Temporal Lobe

3

2

1

0.754

 Other

11

8

3

0.890

 Subarachnoid hemorrhage

10

4

6

0.170

 Cerebral contusion and laceration

7

1

6

0.009

 Extradural hemorrhage

3

2

1

0.788

 Subdural hemorrhage

2

1

1

0.786

 Intracranial aneurysm

1

1

0

0.403

Clinical symptoms

 Conscious disturbance

32

32

0

0.000

 Headache and dizziness

17

7

7

0.413

 Nausea and vomiting

16

10

6

0.753

 Transient loss of consciousness

8

0

8

0.000

 Limb weakness

8

5

3

0.840

 Urinary incontinence

4

4

0

0.000

 Others (inarticulate, defect of visual field, blurred vision)

6

1

5

0.024

GCS score on admission

 3–8

 

24

  

 9–12

 

7

  

 13–15

 

1

  

MMSE score on admission

 0–9

  

0

 

 10–20

  

5

 

 21–27

  

17

 
  1. Continuous variables are expressed as percentage or mean ± standard deviation, and categorical variable are expressed in terms of n (%)
  2. GCS Glasgow coma scale, MMSE Mini-mental State Examination