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Table 5 Analysis of the clipping factors of intracranial aneurysms

From: The classification of intracranial aneurysm neck: a single center research experience

influence factor

cases

normal

adverse event

χ2

P

Age

   

0.04

> 0.5

 ≤65

166

158

8

  

  > 65

80

73

7

  

Gender

   

0.1

> 0.1

 male

113

106

7

  

 female

133

125

8

  

Time,d

   

0.03

> 0.9

  < 3

118

111

7

  

  > 3

128

120

8

  

Hunt-Hess

   

0.004

> 0.95

  < IV

154

144

10

  

 IV to V

92

87

5

  

Size,mm

   

0.008

> 0.99

  < 5

130

123

7

  

 5 to 10

86

80

6

  

 10 to 25

30

28

2

  

aneurysms

   

0.01

> 0.92

 Multiple

5

5

0

  

 Single

241

226

15

  

Orientation

   

0.01

> 0.99

 left

133

125

8

  

 right

113

106

7

  

Classification

   

6.06

< 0.01

 Untyped

138

125

13

  

 Typed

108

106

2

  

Position

   

3.34

> 0.75

 ICA

26

25

1

  

 ACA

17

16

1

  

 ACoA

69

65

4

  

 MAC

63

59

4

  

 PCoA

61

58

3

  

 PC

10

10

0