| N | 418 |
| Age, years, median (IQR) | 58 (49–66) |
| Sex—women, n (%) | 242 (57.9) |
| Ethnicity—Han, n (%) | 369 (88.3) |
| BMI, kg/m2, median (IQR) | 26.1 (24.2–27.3) |
| The time from SAH to admission, hours, median (IQR) | 16.5 (11.5–23.0) |
| Hypertension, n (%) | 184 (44.0) |
| Cardiovascular comorbidities, n (%) | 59 (14.1) |
| Diabetes, n (%) | 73 (17.5) |
| A history of nicotine abuse, n (%) | 64 (15.3) |
| A history of ethanol abuse, n (%) | 55 (13.2) |
| Surgical clip, n (%) | 216 (51.7) |
| Coiling, n (%) | 189 (45.2) |
| Location, n (%) |
| Anterior cerebral artery and its branches | 244 (58.4) |
| The medial cerebral artery | 85 (20.3) |
| The posterior circulation | 89 (21.3) |
| Complications in the study, n (%) | 126 (30.1) |
| Surgical time, min, median (IQR) | 145 (85–177) |
| Mechanical ventilation, n (%) | 97 (23.2) |
| Hunt–Hess grade, n (%) |
| 1: Mild headache | 83 (19.9) |
| 2: Severe headache | 109 (26.0) |
| 3: Lethargy, mild focal deficits | 99 (23.7) |
| 4: Stupor | 69 (16.5) |
| 5: Coma | 58 (13.9) |
| Modified Fisher grade, n (%) |
| 1: No thick cisternal blood, −IVH | 91 (21.8) |
| 2: No thick cisternal blood, +IVH | 110 (26.3) |
| 3: Thick cisternal blood, −IVH | 118 (28.2) |
| 4: Thick cisternal blood, +IVH | 99 (23.7) |
| Aneurysm size, mm, median (IQR) | 6.5 (5.0–9.3) |
| Aneurysm size > 10 mm, n (%) | 83 (19.9) |
| ICH, n (%) | 105 (25.1) |
| IVH sum scorea, median (IQR) | 3 (0–6) |
| APACHE-II scoreb, median (IQR) | 16 (10–22) |
| Hydrocephalus, n (%) | 103 (24.6) |
| TCD cerebral vasospasm, n (%) | 92 (22.0) |
| DCI, n (%) | 89 (21.3) |
| Laboratory findings at admission |
| Glucose, mmol/l | 6.46 (5.76–6.85) |
| CRP, mg/l | 6.88 (5.15–10.32) |
| FABP4, ng/ml | 18.2 (12.5–24.9) |
