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Table 2 Relationship between preoperative neurological symptoms and new postoperative neurological deficits

From: Symptomatic small schwannoma is a risk factor for surgical complications and correlates with difficulty of enucleation

 

All tumors (n = 131)

Postoperative deficits

X2 test

Logistic analysis

Y

N

P value

OR

95 % CI

P value

(a)

 Spontaneous pain

  Y

5

27

0.943

0.923

0.293–2.910

0.891

  N

16

83

1

  

 Tenderness

  Y

10

48

0.736

1.149

0.426–3.095

0.784

  N

11

62

1

  

 Tinel sign

  Y

14

63

0.423

1.142

0.387–3.370

0.809

  N

7

47

1

  

 Numbness

  Y

9

29

0.127

1.975

0.693–5.629

0.203

  N

12

81

1

  
 

Small tumors (<4 cm3, n = 60)

Postoperative deficits

X2 test

Logistic analysis

Y

N

P value

OR

95 % CI

P value

(b)

 Spontaneous pain

  Y

4

16

1

0.944

0.217–4.106

0.938

  N

8

32

1

  

 Tenderness

  Y

6

22

0.796

1.216

0.308–4.798

0.78

  N

6

26

1

  

 Tinel sign

      

  Y

9

38

0.754

0.516

0.100–2.659

0.429

  N

3

10

1

  

 Numbness

      

  Y

7

13

0.04

4.378

1.088–17.609

0.038

  N

5

35

1

  
  1. Y yes, N no, OR odds ratio, CI confidential interval
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