Table 2 Descriptive statistics stratified by endovascular therapy on 241 patients

Age

 Mean ± SD

54 ± 13

57 ± 13

55 ± 13

0.121^tt2

Sex

 Male

39 (35%)

31 (24%)

70 (29%)

0.066^chi2

Premorbid mRS

 N

112

129

241

0.393^tt2

 Mean ± SD

0.18 ± 0.52

0.24 ± 0.6

0.21 ± 0.56

 Median (Q1, Q3)

0 (0, 0)

0 (0, 0)

0 (0, 0)

Hunt and Hess Score

 N

112

129

241

 < 0.001^tt2

 Mean ± SD

2.6 ± 1.4

3.3 ± 1.3

3 ± 1.4

 Median (Q1, Q3)

3 (1, 4)

3 (2, 5)

3 (2, 4)

Aneurysm treatment

 Coiling

90 (80%)

98 (76%)

188 (78%)

0.019^chi2

 Clipping

10 (9%)

25 (19%)

35 (15%)

 Coling + Clipping

1 (1%)

3 (2%)

4 (2%)

 Flow diverter

7 (6%)

1 (1%)

8 (3%)

 Web device

4 (4%)

2 (2%)

6 (2%)

EVD

 No

38 (34%)

13 (10%)

51 (21%)

 < 0.001^chi2

 Yes

74 (66%)

116 (90%)

190 (79%)

Delayed cerebral ischemia

 No

61 (54%)

35 (27%)

96 (40%)

 < 0.001^chi2

 Yes

51 (46%)

94 (73%)

145 (60%)

mRS at discharge

 N

112

129

241

 < 0.001^tt2

 Median (Q1, Q3)

3 (1, 5)

5 (4, 5)

5 (2, 5)

 Mean ± SD

3 ± 2.2

4.5 ± 1.5

3.8 ± 2

mRS at final follow-up

 N

96

121

217

 < 0.001^tt2

 Missing

16 (14%)

8 (6%)

24 (10%)

 Mean ± SD

2.4 ± 2.3

3.5 ± 2

3 ± 2.2

 Median (Q1, Q3)

2 (0, 5)

4 (2, 5)

3 (1, 5)