Table 5 Demographics and morphological characteristics of small/large and high/low aspect ratio aneurysms.

Number of aneurysms

52

112

36

128

Age, year

Mean ± SD

52.1 ± 9.2

55.8 ± 9.7

0.10

51.2 ± 7.9

55.6 ± 9.9

0.10

Median

50.0

52.0

50.0

50.0

Range

36.0–77.0

36.0–85.0

40.0–74.0

36.0–85.0

Female sex, % (n/N)

73.1 (38/52)

80.36 (90/112)

0.46

83.4 (30/36)

76.6 (98/128)

0.55

Aneurysm size, mm

Mean ± SD

13.6 ± 3.9

6.9 ± 1.6

4.0e–34

14.2 ± 4.5

7.6 ± 2.3

2.7e–24

Median

11.8

7.0

12.9

7.2

Range

10.1–25.5

3.5–9.9

9.7–25.5

3.5–15.2

Aneurysm neck, mm

Mean ± SD

6.7 ± 1.6

4.9 ± 0.8

3.0e–17

5.8 ± 1.4

5.4 ± 1.4

0.064

Median

6.6

4.7

5.6

5.0

Range

4.3–9.8

4.0–7.5

4.1–8.4

4.0–9.8

Non-sphericity

Mean ± SD

0.20 ± 0.06

0.14 ± 0.07

4.1e–6

0.24 ± .04

0.14 ± 0.06

3.8e–15

Median

0.21

0.15

0.23

0.14

Range

0.06–0.35

0.03–0.30

0.16–0.35

0.03–0.29