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Table 1 Basic clinical characteristics of patients with aneurismal clipping

From: Risk factors of acute coagulation dysfunction after aneurysmal subarachnoid hemorrhage

General information Normal 86 cases Coagulopathy 51 cases χ2 value P value
Age
 < 65 years 77 37 6.612 0.010
 ≥ 65 years 9 14   
Sex
 Male 39 20 0.491 0.483
 Female 47 31   
Smoking
 Yes 16 5 6.563 0.010
 No 70 81   
Alcohol
 Yes 8 1 5.745 0.017
 No 78 85   
Hypertension
 Yes 41 19 0.918 0.338
 No 49 32   
Diabetes
 Yes 3 3 0.438 0.508
 No 83 48   
Hunt-Hess grade
 I–III 73 42 0.152 0.697
 IV–V 13 9   
Fisher grade
 1–2 46 31 0.692 0.405
 3–4 40 20   
Operation time
 ≤ 3 h 41 29 1.082 0.298
 > 3 h 45 22   
Intraoperative total infusion volume
 ≤ 2000 ml 14 3 47.300 0.000
 2000–4000 ml 61 37   
 ≥ 4000 ml 11 11   
Intraoperative blood loss
 ≤ 300 ml 50 28 20.470 0.000
 300–600 ml 13 8   
 ≥ 600 ml 23 15   
Intraoperative transfusion
 Yes 7 10 3.874 0.049
 No 79 41   
Intraoperative hemostatic drug
 Yes 13 9 0.152 0.697
 No 73 42   
Calcium reduction
 < 1.20 mg/dl 10 17 60.223 0.000
 0–1.20 mg/dl 65 31   
 ≥ 1.20 mg/dl 11 3