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Table 1 General data

From: Therapeutic Effects of Microsurgical Clipping at Different Time Points on Intracranial Aneurysm and Prognostic Factors

Group Good prognosis group (n = 87) Poor prognosis group (n = 15) t/χ2 P
Age (years) 51.32 ± 7.25 63.58 ± 6.87 6.092 0.000
Male/female (n) 42/45 7/8 0.001 0.982
BMI (kg/m2) 22.59 ± 2.42 23.12 ± 2.18 0.794 0.429
History of hypertension [n (%)] 23 (26.44) 11 (73.33) 1.278 0.046
Preoperative intracranial hematoma volume (mL) 18.16 ± 3.56 23.42 ± 4.37 5.107 0.000
Aneurysm size (mm) 5.43 ± 1.72 16.38 ± 5.43 15.163 0.000
Preoperative Hunt–Hess grade [n (%)]    6.480 0.002
 I 17 (19.54) 1 (6.67)
 II 34 (39.08) 4 (26.67)
 III 32 (36.78) 7 (46.67)
 IV 4 (4.60) 3 (20.00)
Timing of surgery [n (%)]    14.903 0.001
 < 24 h 20 (22.99) 1 (6.67)
 < 48 h 47 (54.02) 7 (46.67)
 < 72 h 20 (22.99) 7 (46.67)
Length of hospital stay (days) 11.42 ± 6.42 21.58 ± 9.84 5.192 0.000
Postoperative complications [n (%)]    29.271 0.000
 Cerebral vasospasm 2 (2.30) 3 (20.00)
 Aneurysm rupture 1 (1.15) 2 (13.33)
 Cerebral edema 1 (1.15) 2 (13.33)
 Cerebral infarction 2 (2.30) 3 (20.00)
 Intracranial infection 0 (0) 2 (13.33)
 Severe pulmonary infection 1 (1.15) 3 (20.00)
 NIHSS score 10.13 ± 2.42 16.12 ± 3.68 8.137 0.000