Univariate analysis comparing patients with ruptured and unruptured cerebral aneurysms
| Variable | Unruptured (n=39) | Ruptured (n=21) | p Value |
| Age | |||
| Mean (SD) | 53.4 (12.7) | 54.9 (12.4) | 0.66 |
| Median | 52 | 54 | |
| Body mass index (kg/m2) | |||
| Mean (SD) | 28.5 (7.6) | 26.5 (7.2) | |
| Median | 28.4 | 26.7 | 0.34 |
| Education (>12 grade) | |||
| n (%) | 20 (52.6) | 7 (33.3) | 0.15 |
| Smoker | |||
| n (%) | 10 (25.6) | 6 (30) | 0.72 |
| Menarche age (years) | |||
| Mean (SD) | 12.6 (1.8) | 13.1 (1.5) | |
| Median | 12.5 | 13 | 0.28 |
| Nulliparous (yes) | |||
| n (%) | 5 (13.9) | 2 (9.5) | 1.0 |
| No of pregnancies | |||
| Mean (SD) | 3.3 (2.5) | 3.2 (1.5) | |
| Median | 3 | 3 | 0.82 |
| Age first live birth (years) | |||
| Mean (SD) | 21.7 (7.6) | 19.6 (5.6) | |
| Median | 20.5 | 20 | 0.62 |
| Menopause age (years) | |||
| Mean (SD) | 41 (9) | 47.1 (6.3) | 0.02 |
| Median | 42 | 48.5 | |
| Premature menopause (menopause age <45) | |||
| n (%) | 14 (58.3) | 6 (37.5) | 0.2 |
| Post-menopause | |||
| n (%) | 24 (61.5) | 16 (76.2) | 0.25 |
| Hysterectomy | |||
| n (%) | 16 (43.2) | 5 (25) | 0.17 |
| Hormone replacement therapy | |||
| n (%) | 11 (28.2) | 3 (15) | 0.34 |
| Hormone replacement therapy duration among users (years) | |||
| Mean (SD) | 14.3 (13.6) | 5.5 (6.4) | |
| Median | 6.5 | 5.5 | 0.67 |
| Oral contraceptive pill | |||
| n (%) | 25 (64.1) | 11 (52.4) | 0.38 |
| Oral contraceptive pill duration among users (years) | |||
| Mean (SD) | 5.8 (6.8) | 5 (4.8) | |
| Median | 4.5 | 3 | 0.89 |