TABLE 1.
The demographic and baseline information of patients in the primary cohort.
| Characteristics | With stable IAs n = 341 | With rebleeding IAs n = 70 | P value |
| Male, n (%) | 129 (37.8%) | 32 (45.7%) | 0.219 |
| Age, years, M ± SD | 54.8 ± 10.4 | 54.0 ± 8.9 | 0.467 |
| Comorbidities, n (%) | |||
| Hypertension | 111 (32.6%) | 39 (11.4%) | <0.001+ |
| Dyslipidemia | 28 (8.2%) | 10 (14.3%) | 0.110 |
| Diabetes mellitus | 11 (3.2%) | 3 (4.3%) | 0.656 |
| Coronary heart disease | 8 (2.3%) | 3 (4.3%) | 0.360 |
| Ischemic stroke | 10 (2.9%) | 3 (4.3%) | 0.556 |
| Modified Fisher scale at admission, n (%) | 0.517 | ||
| I–II | 121 (35.5%) | 22 (31.4%) | |
| III–IV | 220 (64.5%) | 48 (68.6%) | |
| Hunt-Hess grade at admission, n (%) | 0.829 | ||
| I–II | 219 (64.2%) | 44 (62.9%) | |
| III–V | 122 (35.8%) | 26 (37.1%) | |
| Blood pressure | |||
| At admission, n (%) | 0.578 | ||
| <160/90 mmHg | 114 (33.4%) | 21 (30.0%) | |
| >160/90 mmHg | 227 (66.6%) | 49 (70.0%) | |
| Before rebleeding/surgery, n (%) | 0.951 | ||
| <140/80 mmHg | 311 (91.2%) | 64 (91.4%) | |
| >140/80 mmHg | 30 (8.8%) | 6 (8.6%) | |
| Treatment, n (%) | |||
| Dead before surgical intervention | 7 (2.1%) | 14 (20.0%) | |
| Endovascular intervention | 189 (55.4%) | 36 (51.4%) | |
| Microsurgical clipping | 145 (42.5%) | 20 (28.6%) | |
| PHASES, m (IQR) | 2 (0–4) | 2 (1–5) | 0.265 |
| ELAPSS, m (IQR) | 9 (5–14) | 12.5 (7–15) | 0.004+ |
+The parameter was significant. IAs, intracranial aneurysms.